Research | Achim Kempf | Department of Applied Mathematics

Seminar schedule

Our seminars now normally take place Fridays 10:30am-12pm in our Lab, MC6091, preceded by a general group discussion from 9:30am, if not otherwise specified.

Winter 2012:

Mar 30, 10:30am, Dr. Robert Martin (Univ. of Cape Town), TBA
Mar 23, 10:30am, Eric Brown (UW Physics), On quantum discord
Mar 16, 10:30am, Dr. Markus Mueller (PI), TBA
Mar 9, 10:30am, Dr. Eduardo Martin Martinez, TBA
Mar 2, 10:30am, Robert Jonsson, Review of a paper by Datchev & Hezari on spectral geometry IV
Feb 17, 10:30am, Aidan Chatwin-Davies, Review of a paper by Datchev & Hezari on spectral geometry III
Feb 10, 10:30am, Mikhail Panine, Review of a paper by Datchev & Hezari on spectral geometry II
Feb 3, 10:30am, Aidan Chatwin-Davies, Review of a paper by Datchev & Hezari on spectral geometry I
Jan 27, 10:30am, Eric Webster, On the asymptotics of superoscillations
Jan 25 (Wed), 9:30am, David Bruschi (Nottingham University), How cavities' motion affects entanglement
Jan 20, Jeff Hnybida (Perimeter Institute), BF-theory and spin foam models III
Jan 12, Jeff Hnybida (Perimeter Institute), BF-theory and spin foam models II

Fall 2011:

Dec. 15, 11am, Jonathan Ziprick (PI), Relating Loop Quantum Gravity and General Relativity
Dec. 9, 11am, Mikhail, Aidan and Robert: 15min Applied functional analysis seminars.
Dec. 7, 11am, Dr. Yufang Hao, The Shannon sampling theorem: Fourier and functional analytic approach
Nov. 30, 4:30pm, Dr. Cedric Beny (Univ. of Hannover, Germany), On entanglement renormalization
Nov. 30, 11am, Aharon Brodutch (Macquarie University, Sydney, Australia), Polarized photon qubits in curved space-time
Nov. 23, 11am, Eric Webster, Properties of entanglement entropy
Nov. 18 (Friday), 11am, Dr. Alexander Gutfraind (Univ. of Texas at Austin): Aspects of network theory
Nov. 17 (Thursday), 2:30pm, MC5136, Dr. Alexander (Sasha) Gutfraind (Univ. of Texas at Austin): Computational problems on complex networks
Nov. 16, 11am, Aidan Chatwin-Davies, On the partial trace over subsystems II
Nov. 11, 11am (Friday), Aidan Chatwin-Davies, On the partial trace over subsystems I
Nov. 9, Jeff Hnybida (Perimeter Institute), BF-theory and spin foam models I
Nov 3, 10am, Eduardo Martin-Martinez (Univ. of Madrid), Aspects of relativistic quantum information
Nov. 2, 11am, Dr. Hans Westman (Univ. of Sydney and PI): Localized q-bits in curved spacetimes
Oct. 27, (Thursday), 3:30pm (refreshments in PHY151), 4pm: Colloquium in PHY151, Prof. John Klauder (Univ. Florida): Affine Quantization
Oct. 26, 3pm, Dr. Spiros Mikalakis (CalTech), Stability of Frustration-Free Hamiltonians II
Oct. 24, 11am, Dr. Aron Wall (UC Santa Barbara), On black hole thermodynamics,
and 4pm (Time room, PI), Dr. Spiros Michalakis (CalTech): Stability of Frustration-Free Hamiltonians I
Oct. 19, 10am, Chris Ferrie, On the sampling of probability distributions
and 11am: Dr. Federico Piazza (Univ. de Paris 7), Spontaneous symmetry probing states
Oct 12, 11am, Prof. John Klauder (Univ. of Florida), On affine quantization methods
Oct. 7, 10:30am, Prof. Naoki Saito, (UC Davis), New methods for radar and sonar
Oct. 6, 3:30pm, MC5136, Prof. Naoki Saito (UC Davis), Harmonic/Wavelet Analysis on Graphs and Networks with Applications
Oct. 5, 11am, Prof. Naoki Saito (UC Davis), Laplacian Eigenfunctions that do not feel the boundary: Theory, Computation and Applications
Oct. 4, 9am-12pm, AK: Sampling of curvature II
Oct. 3, 9am-12pm, AK: Sampling of curvature I
Sep. 28, 9am-12pm AK: Sampling theory
Sep. 21, 3:30pm, MC5136, Eduardo Brandao: Master's defense
Sep. 21, 11am, AK: Generalized uncertainty relations II
Sep. 19, 3pm, in MC 5136, Yufang Hao: Ph.D. defense
Sep. 16, 4pm, Yufang Hao: Test run of his Ph.D. defense presentation
Sep. 14, 11am, AK: Generalized uncertainty relations I

Visitors: Prof. John Klauder (Univ. of Florida), Prof. Naoki Saito (UC Davis), Dr. Spiros Michalakis (CalTech), Dr. Sasha Gutfraind (U. Texas at Austin), Dr. Aron Wall (UC Santa Barbara), Dr. Eduardo Martin-Martinez (Univ. of Madrid)

Summer 2011:

Aug. 25, 11am, David Aasen (McGill), Creating a spin polarized wave packet
Aug. 24, 11am, Tejal Bhamre (IIT Bombay & Princeton), Jet detection algorithms using Haar wavelets
Aug. 18, M. Nica, E. Bembenek and M. Panine give presentations at Applied Math undergrad research conference
Aug. 18, 11am, M. Nica, E. Bembenek and M. Panine give more trial runs of their conference talks
Aug. 17, 11am, E. Bembenek and M. Panine give trial runs of their conference talks
June 22, 11am, Prof. J. Emerson, Ontological models for quantum theory
June 15, 11am, E. Bembenek: On spikes in superoscillatory waves
June 8, 11am, Dr. R. Pfeifer (U. of Queensland & PI): Simulating anyons in condensed matter physics
June 2: 11am, M. Nica, Mihai Nica: Models of competitive games and transitive versus nontransitive rankings II.
May 25: 11am, L. Stephenson Haskins, I. Roth, Aspects of infinitesimal spectral geometry
May 18, 11am, M. Panine: Dielectic Microresonators: applications, perturbative treatment and finite element simulation
May 11, 11am, M. Nica: An evolutionary algorithm for leg dynamics, Eric Bembenek: On stratified fluid flows
May 10, 10am-5pm, Summer project planning
May 4, 2pm, Group discussion of research topics III
May 4, 11am, M. Nica: Models of competitive games and transitive versus nontransitive rankings I.
May 3, 11am, Group discussion of research topics II
May 2, 1pm, Group discussion of research topics I

Winter 2011:

Apr. 26, 3pm: AK gives IQI colloquium talk at Cal Tech: Spacetime could be simultaneously continuous and discrete in the same way that information can
Apr. 8, 12pm: AK talks in Gravity Seminar at UC Santa Barbara: Spacetime could be simultaneously continuous and discrete in the same way that information can
Mar. 30, 10am: Eduardo Brandao, Gauge invariant perturbations on the 2-sphere
Mar. 24, 11:30am: Dr. Olaf Dreyer, On quasinormal modes of black holes
Mar. 4, AK gives seminar in Math at U of T: Infinitesimal inverse spectral geometry and applications in mathematical physics.
Mar. 2, Alessio Orlandi (Univ. of Bologna and INFN, Italy), A Glimpse of the Kodama Vector
Feb. 28, Dr. Jay Olsen (Univ. of Queensland, Australia), Timelike entanglement in the quantum vacuum
Feb. 24, AK gives colloquium at the Santa Fe Institute, Spacetime could be simultaneously continuous and discrete, in the same way that information can be.
Feb. 23, AK gives colloquium at LANL, Spacetime could be simultaneously continuous and discrete, in the same way that information can be.
Feb. 22, AK gives colloquium at the Los Alamos National Lab (LANL), High Tc superconductivity and the Casimir / van der Waals effect
Feb. 2, Dr. F. Piazza (Paris 7), Modifying gravity in the Infrared by imposing an "ultra-strong" equivalence principle
Jan. 26, Dr. Andy Randono (PI), Torsional Skyrmions
Jan. 19, Loic Markley (U of T), Superresolution: theory and practice.
Jan. 12, Dr. Florian Conrady (PI), Space as a low-temperature regime of graphs

Fall 2010:

(Dec. 20, AK talks at Heidelberg University, Germany)
(Dec.17, AK talks at Albert Einstein Institute, Potsdam, Germany)
Dec 1, Dr. Alioscia Hamma (PI), Locality of dynamics and the structure of correlations in quantum many body systems
Nov. 4, (Thu), 2:30pm, MC5136, Dr. Frederic Schuller (Einstein Institute, Golm, Germany), TBA
Oct. 29 (Fri, 11am), Dr. Alexander Gutfraind (Los Alamos Natl. Lab), On the resilience of networks
Oct. 27, Mikhail Panine, Two-part talk: On gravitational lensing / On the Helmholtz equation in dielectric cavities
Oct. 20, Dr. Olaf Dreyer, Internal Relativity: Quantum Gravity without Quantization
Oct. 14, MC5136, Prof. Almut Burchard (UofT), Convergence and Smoothing Properties of Steiner Symmetrizations and Other Simple Rearrangements
Oct. 13, 9am, Mini Workshop on Entanglement Entropy in Quantum Field Theory. Speakers: Drs. Miyake, Piazza, Casini, Myers, Smolkin, Sinha
Oct. 6, 4pm, PI Bob room, Prof. John Klauder (Univ. of Florida): Proposal for divergence-free quantization of covariant scalar fields
Oct. 6, Dr. Robert Martin (UC Berkeley), On a covariant UV cutoff in cosmology
Sept. 29, Eduardo Brandao, On H. Nielsen's Random Dynamics
Sept. 22, Chris Ferrie, Optimal quantum state estimation
Sept. 17, 11am, Dr. Piero Nicolini (Univ. of Frankfurt), Evaporating black holes in the presence of a minimal length
Sept. 17, 2pm, Benjamin Niedner, Hausdorff dimension of particle paths inquantum spacetime
Sept. 17, 2:30pm, Martin Sprenger, Neutrino oscillations in a minimal length model.
Sept. 13, AK talks at CITA/PI meeting in Toronto

Visitors:

Prof. Almut Burchard (UofT), Oct.14
Dr. Frederic Schuller (AEI), Oct.26-Nov.9
Dr. Robert Martin (UC Berkeley): Oct 4-9 and 11-14
Prof. John Klauder (Univ. of Florida): Oct 5-8
Dr. Alexander Gutfraind (LANL): TBA
Dr. Piero Nicolini (Univ. of Frankfurt): Sept. 15-Oct 1, Benjamin Niedner, Martin Sprenger: Sep.11-18

Spring/Summer 2010:

Aug 1-15, AK teaches at a summer school in Ftan, Switzerland
July 7 (Wed), Mathieu Cliche, On the propagation of quantum information in field quanta
June 30 (Wed), 3pm, Tejal Bhamre, On inverse spectral geometry
June 30 (Wed), 11am, David Aasen, On quantum fluctuations
June 29 (Tue), 6pm, Group dinner at Mandarin Restaurant
June 29 (Tue), 11am, Dr. Olaf Dreyer, Review of Sakharov's induced gravity
June 24 (Thu), 2pm, Eduardo Brandao, Aspects of spectral geometry II
June 23 (Wed), 11am, Dr. Michel Elnaggar, MIMO Systems
June 16, Eduardo Brandao, Aspects of spectral geometry
June 2, Miok Park, Holographic normalization of asymptotically flat spacetimes.
June 1, 11:30am in Physics Room 235, AK gives PHYS10 lecture to physics undergrads on Spacetime and Information
May 26, Matt Coles (McMaster Univ.), TBA
May 19, Robert Pfeiffer (Univ. of Queensland, Australia), Interacting Fibonacci anyons and defects in conformal field theory
May 7, Dr. Andrzej Dragan (Univ. of Warsaw, Poland), On the black hole information paradox
May 5, Cohl Furey (PI), Unified theory of ideals

Visitor: Prof Robert Brout

Winter 2010:

April 28, Dr. Olaf Dreyer, On emergent gravity
April 7, Dr. Andy Randono (PI), TBA
March 29, Dr. Hans Westman (Univ. of Sydney, Australia), On the parallel transport of qubits
March 24, Chris Ferrie, Bayesian probability in quantum theory
March 10, Dr. Piero Nicolini, Evaporating black holes in the presence of a minimal length
Feb. 24, Dr. Olaf Dreyer, Internal relativity, early universe cosmology IV
Feb. 10, Dr. Olaf Dreyer, Internal relativity, early universe cosmology III
Feb. 3, Dr. Olaf Dreyer, Gravity as an entropic force - Discussion of Verlinde's paper
Jan. 27, Eduardo Brandao, A review of spectral geometry
Jan 10, AK talks at Dept. of Mathematics, University of Goettingen

Visitor: Prof. Robert Brout

Fall 2009:

AK traveling in Australia and Europe
Nov. 17, Dr. Olaf Dreyer, Internal relativity, early universe cosmology II
Nov. 11, Dr. Olaf Dreyer, Internal relativity, early universe cosmology I
Oct. 21, Dr. Radu Ionicioiu (Hewlett-Packard Lab, Bristol, UK): Generalized parity measurements: an entanglement resource
Oct. 14, Dr. Nick Menicucci (PI): Entangling power of an expanding universe
Oct. 7, 9am, Dr. Kamil Bradler (McGill): What can the Unruh effect say about the additivity of the classical and quantum capacity of cloning channels?
Sep. 16, AK talks in PI colloquium (2pm, Bob room): Spacetime can be discrete and continuous, in the same way that information can.
Sep. 9, AK talks at King's College in the University of Western Ontario: On physics and consciousness
Sep. 2, Angus Prain (SISSA, Italy), On superoscillations.

Summer 2009:

August 24, AK talks at Emergent Gravity IV conference (at UBC, Vancouver): Spacetime could be simultaneously discrete and continuous, in the same way that information can.
August 20, Chuck, Peter, Raymond and Simon talk in the summer students' research conference in MC5136
August 13, Dr. Oliver Winkler, Market efficiency
August 12, Chuck Bronson, Filtering for time-varying bandwidths
August 6, Thursday, 11am, Dr. Oliver Winkler, Bonds, stocks, options: how much should you pay for them? VII
August 5, Peter Forbes, On the Casimir effect in high temperature superconductors, followed immediately by: Raymond Su, On the design of radar signals
July 29, Dr. Oliver Winkler, Bonds, stocks, options: how much should you pay for them? VI
July 23, Dr. Oliver Winkler, Bonds, stocks, options: how much should you pay for them? V
July 22, Mathieu Cliche, Extracting entanglement from the vacuum
July 15, Dr. Oliver Winkler, Bonds, stocks, options: how much should you pay for them? IV
July 8, Dr. Oliver Winkler, Bonds, stocks, options: how much should you pay for them? III
July 6, 3pm, Simon Foreman, On the Casimir effect in high temperature superconductors
June 24, Dr. Oliver Winkler, Bonds, stocks, options: how much should you pay for them? II
June 17, Dr. Oliver Winkler, Bonds, stocks, options: how much should you pay for them? I
June 11, 2:30, PI Bistro, AK, Information theoretic UV cutoff of spacetime II
June 4, 2:30, PI Bistro, AK, Information theoretic UV cutoff of spacetime
May 27, 11am, Mathieu Cliche, Information flow in quantum fields
May 20, 11am, Dr. Elias Okon, On Berry phases
May 14, 11am, Dr. Cedric Beny (Centre for Quantum Technologies, Natl. Univ. Singapore): Joint measurability and preserved observables
May 13, 11am, Hongbao Zhang (PI): S-matrix without local quantum field theory
May 12, 2pm, Dr. Rob Martin (UC Berkeley), gives departmental seminar in MC5136: Symmetric operators and sampling theory

Fall 2008 / Winter 2009:

AK on sabbatical in Europe and Australia.

Summer 2008:

August 13, Mathieu Cliche and Jeff Li give test runs of their conference presentations
August 6, William Donnelly, On entanglement in quantum field theory
July 31, 2pm: Angus Prain: Semi-classical Gravity and Backreation
July 9, Yufang Hao: Stability of reconstruction in non-uniform sampling
July 2, AK: On the Casimir effect in High Tc superconductors II
June 18, AK: On the Casimir effect in High Tc superconductors I
June 11, Hongbao Zhang, Generalized second law, covariant entropy bound and the cosmological constant problem
June 4, Yufang Hao: Introduction to rate-distortion theory
May 28, Dr. Sabine Hossenfelder (of PI), Observables of Quantum Gravity at the LHC
May 15, 2pm, PI Alice room, Prof. John Klauder, Affine Quantum gravity: a different view on a difficult problem
May 14, 10am, in PHYS352, Prof. John Klauder (U. of Florida), Path integration: an historical slice
May 9, 10am, MC5158, William Donnelly's Master's defense
May 8, 10am, MC5136, Angus Prain's Master's defense
May 7, 9:30am, MC5136, Rob Martin's PhD defense

Winter 2008:

April 30, Cedric Beny: 11:30am, Basics of Superconductivity II
April 28, 11:30-12:30pm, PI Bob room: AK talks at PI conference Quantum Information and Graph Theory: emerging connections. Title: A Unifying View of Graph Theory in Quantum Field Theory (work with D.M. Jackson and A. Morales).
April 25, (Friday!), 2pm: Dr. Alejandro Borbonet, Bekenstein bounds and spectral geometry
April 23, Grad student research conference (AK acts as judge in DC1304)
April 22, 11am, Dr. Iraida Carnero: Noncommutative geometry and integrable models
April 16, Franklin Marquezino: Simulations of quantum walks
April 9, 11am, Robert Martin: Time-varying bandwidths and invariant subspaces of differential operators
April 2, Dr. Renato Portugal: Quantum channel capacity and the Holevo bound
March 26, Cedric Beny: Basics of Superconductivity !
March 5, Yufang Hao: Classical Shannon channel capacity
Feb. 27: 4pm Bob room at PI, Cedric Beny: Unsharp pointer observables and the structure of decoherence
Feb. 13, David Ostapchuk: Entanglement creation in the fermionic Unruh effect
Feb. 6, Dr. Renato Portugal: On quantum random walks
Feb. 4, 2:30pm in PHYS352, special seminar jointly hosted with physics:
Prof. Paul Smrz (U Newcastle, Australia): 5D gravity and minimum length
Jan 30, Tom Waterhouse (PI): Cosmic variance of Ω
Jan. 23, 11am: Easwar Magesan: Identification of Correctable Codes via Twirling
Jan. 16, Cedric Beny: On the structure of decoherence

Visitors: Prof. Robert Brout, Dr. Alejandro Borbonet, Dr. Iraida Carnero, Prof. Paul Smrz, Dr. Harold Steinacker

Fall 2007:

Dec. 9,10: group takes part in PI workshop "Quantum Information Theory in Quantum Gravity".
Dec 8: AK, Rob Martin and Cedric Beny talk at CMS winter meeting in London, Ontario, in the special session on "Quantum Information Theory in Quantum Gravity".
Dec 4: 11:00am, Joe Henson (of PI): On covariant discretizations II.
Nov. 27, 10:30am, Federico Piazza (of PI): On entanglement entropy in spacetime regions.
Nov. 20, 9am, Joe Henson (of PI): On covariant discretizations I.
Nov 13: 10am: Hongbao Zhang talks on entanglement entropy and related issues.
Nov. 5-9: AK co-organizes workshop at PI, "Experimental Search for Quantum Gravity"
Nov 3, (Friday) 3pm, Prof. Ahmed Zayed (de Paul Univ., Chicago) talks on sampling theory in colloquium (MC5158)
Oct. 23, 10am, Angus talks on superoscillations and quasilattices
Oct. 16, 10am in MC6091, Chris Ferrie: review of a paper with J. Emerson.
Oct. 11, AK talks in Physics at UBC.
Oct. 9, 10am, MC6091, John Madore (Paris): Aspects of noncommutative geometry
Oct. 6, Rob Martin and Yufang Hao talk at AMS meeting in Chicago
Sep. 17-21: AK talks at QFEXT07 conference in Leipzig, Germany
Sep. 4-7: AK co-organizes conference at University of Wuerzburg, Germany: "Initial Conditions in Cosmology"

Visitors: Prof. John Madore (Paris), Prof. Ahmed Zayed (Chicago), Prof. Robert Brout (Bruxelles), Prof. Bill Unruh (UBC), Prof. Jens Niemeyer (Wuerzburg)

Spring / Summer 2007:

Aug. 5-18, AK teaches at summer school on quantum information, Ftan, Switzerland
Tue., July 17th, Yufang Hao: comprehensive exam
Tue., July 10th, 11:30am: William Donnelly: Report on Loops07 conference
Tue., July 3rd, 11:30am, Rob Martin: Report on SAMPTA07 conference
June 25-30: William Donnelly talks at Loops'07 conference in Morelia, Mexico.
June 16-23, AK at GRAVTUM1 conference
June 6-8, Yufang Hao talks at IEEE Canadian workshop on information theory, Edmonton
June 1-6, AK and Rob Martin talk at SAMPTA07 conference
Tue., May 29th, 11:30am, Cedric: Report on Zakopane Winter School III
Tue., May 15th, 11:30am, Cedric: Report on Zakopane Winter School II
Tue., May 1st, 11:30am, Angus: Report on Zakopane Winter School I
Tue., April 24th, 11:00am, Bob room, PI, Mauro Francaviglia (U.of Torino, Italy): Dark energy as a curvature effect in nonlinear theories of gravity.
Thu., April 19th, 2pm: Alice room, PI, Mauro Francaviglia: The geometry of Barbero Immirzi connections.
Tue., April 17th, 11:30am, William: Entanglement entropy in loop quantum gravity
Tue., April 10th, 10am, MC5136, Cedric: Comprehensive exam
Tue., March 27th, 11:30am, Robert Brout: On random walks

Visitors: Prof. Mauro Francaviglia (Torino), Prof. John Klauder (Florida), Prof. Robert Brout (Bruxelles)

Winter 2007:

Tue, March. 20th, 10:00am, Bernhard Bodmann: Quantum communications and an optimization problem for POVMs
Tue, March 13th, 11:30am, Angus Prain: On the effective action of QFT in curved space (to be confirmed)
Tue. Feb. 27th, 11:30am, Alejandro Morales: Intro to the effective action and graphs in QFT (5)
Wed, Feb. 14th, 11:30am, Group photo op
Tue, Feb. 13th, 11:30am, AK: Intro to the effective action and graphs in QFT (4)
Tue, Feb. 6th, 11:30am, AK: Intro to the effective action and graphs in QFT (3)
Tue, Jan. 30th, 11am, Serge Winitzki, in Bob room, PI, "Quantum gravity and the conditions at the birth of the universe"
Tue. Jan 30th, 9:00am, AK: Intro to the effective action and graphs in QFT (2)
Fri. Jan. 26th, 9-10:30am, Florian Koch in Bob room, PI: Intro to Quantum Groups (V)
Thu. Jan. 25th, 2pm: Florian Koch talks in PI's quantum gravity seminar
Thu. Jan. 25th, 9-10:30am, Florian Koch in Bob room, PI: Intro to Quantum Groups (IV)
Tue. Jan 23rd, 11:30am, AK: Intro to the effective action and graphs in QFT (1)
Mon. Jan. 22nd, 9-10:30am, Florian Koch in Bob room, PI: Intro to Quantum Groups (III)
Fri. Jan. 19th, 9-10:30am, Florian Koch in Bob room, PI: Intro to Quantum Groups (II)
Thu. Jan. 18th, 9-10:30am, Florian Koch in Bob room, PI: Intro to Quantum Groups (I)

Visitors:

Prof. Robert Brout (Univ. Libre de Bruxelles),
Dr. Florian Koch (Univ. of Munich)
Dr. Serge Winitzki (Univ. of Munich)
Dr. Mauro Francaviglia (Univ. of Torino)
Dr. Wenfeng Chen

Fall 2006:

Dec. 8th, (Friday) 9am (broadcast to Wuerzburg), Rob Martin: Sampling theoretic UV cutoff on curved spacetime.
Dec. 6th, (Wednesday), 11am Alejandro: Gravitational entropy and Fisher information
Dec. 4th, (Monday) 3:30pm Wenfeng Chen: Wavelets II.
Nov. 27th, (Monday) 9am, Cedric's comprehensive seminar, Transmission of observables through quantum channels, in MC5158.
Nov. 24th, 2pm (Friday): Cedric gives test run of his comprehensive seminar.
Nov. 20th, 9am, Tim (via video conference from Wuerzburg): Loop quantum cosmology II
Nov. 13th, 3:30pm Wenfeng Chen: Wavelets I
Nov. 7th, (Tuesday!) 2pm: A. Green, Dark matter in cosmology (via video-conference from PI)
Nov. 6th, 9am Cedric Beny: Introduction to loop quantum cosmology
Oct. 30th, 4pm: Wenfeng Chen: From Fourier to wavelets
Oct. 16th, 9am: Angus: Introduction to quantum cosmology
Oct. 9th, no seminar due to Thanksgiving
Oct. 2th, Hauke Haseler (IQC): Continuous quantum information and entanglement
Sept. 25th, Cedric: Locking quantum information
Sept. 20th, David: A model for mode creation in cosmology
Sept. 13th, Larissa Lorenz (IAP, Paris): Two field inflation
Sept. 5-8: AK and Justin Khouri run international workshop at PI:

"Planck scale cutoff in expanding spacetimes"
- Schedule
- Video of the talks
Sept. 1st, 11am: Tom Waterhouse (UBC): Chameleon Inflation

Visitors: Dr. Wenfeng Chen, Dr. Alejandro Borbonet, Prof. Robert Brout

Spring / Summer 06:

August 16: Chris: Test run of his summer conference talk
August 2: Chris: Introduction to phase space quantization
July 5: Cedric: On operator quantum error correction and information flow in measurements
July 5: Jonathan Oppenheim (Cambridge): Negative, uncommon, and private information
June 21: Angus: Double special relativity.
June 7: David: The cosmic microwave background II
May 31: Adeel: On quantum fluctuations
May 24: Joseph: Discrete vs. continuous randomization of quantum systems.
May 17: David: The cosmic microwave background I
May 12: Bernhard: On quantum noise
May 10: John Madore: The fuzzy sphere (visitor from Univ. Paris Sud)
May 3: Cedric: On loop quantum cosmology
Apr. 26: Yufang: Spectral methods in DEs

Winter 06:

Apr. 5: Rob: On sectional curvature bounds
Mar. 29: William: On the holographic principle
Mar. 22: Discussion of WMAP results, Bob room at PI (11am!)
Mar. 8: Sasha: On the genetic code, as a code.
Feb. 22: Cedric: Aspects of Shannon information and data compression
Feb. 15: Sasha: Mechanisms leading tyo power laws
Feb 8: Sasha: Examples of power laws
Feb. 1: Rob: Sampling theory on curved space
25 Jan: William: Review of the gauge principle

Visitors:

Prof. Robert Brout (U. Libre de Bruxelles, Belgium)
Dr. Alessio Notari (McGill, Montreal)
Dr. Alejandro Borbonet (U. of Mato Grosso, Brazil)

Fall 05:

29 Nov.: discussion with audio/visual people re lab
15 Nov.: Cedric on POVM versus von Neumann measurements II
8 Nov.: Cedric on POVM versus von Neumann measurements I
1 Nov.: William reports on his summer research, with Richard Cleves,
              on mutually unbiased bases and related issues.
25 Oct.: Newtonian Limit for Perfect Fluids, Oliynyk (visiting from Potsdam) in MC5158
18 Oct.: Sasha talks on mathematical models in epidemiology
11 Oct.: David continues his report on the conference in Brazil.
26 Sep.: (Monday!), 2pm: David reports on the conference in Brazil.
20 Sep.: (3pm !) Joseph reviews decoherence vs. dissipation.
13 Sep.: Joseph reviews decoherence.
7 Sep.:   Jonathan Oppenheim (visiting from Cambridge)
                talks on "Locking information in black holes".

Spring 05:

30 April-9 May: AK in Europe
16 May: Group discussion over Lunch
24-26 May: AK and Sasha at "Origins" conference at McMaster
30 May: Rob gives test run of his talk at CMS meeting
31 May: AK and Sasha talk at "Origins" workshop in Hamilton
4-6 June: AK organizes special session at CMS meeting
6 June: Rob talks at CMS conference.
13 June: organizational meeting and general discussion
16 June: AK talks on QCD in Sci. Comp. / Comp. Math group (MC5158A at 1:30pm)
20 June: AG, AS, RM and YH report on CMS conference
29 June: Rob reports on CMS conference, reviewing the adiabatic theorem in quantum computing
30 June: AK talks on QCD in Sci. Comp. / Comp. Math group (MC5158A at 1:30pm)
4 July: Yufang talks on symmetric vs self-adjoint operators and sampling I
11 July: Yufang talks on symmetric vs self-adjoint operators and sampling II
18 July: David on quantum dissipative systems
25 July: David talks at PI on "Inflation and violation of Bell inequalities", 2pm, Bob room.
26 July: (Tuesday) 1:30pm in MC5136) Sasha on genetic algorithms
2 August (Tuesday): Cedric talks on decoherence
8 August: Cedric finishes decoherence and
Yufang and Adeel talk on self-adoint extensions and sampling, and vacuum fluctuations
11 August: (Thursday) Adeel and Yufang present at the summer student conference.
12 August: (Friday) 1pm: Cedric finishes on noiseless subsystems
1:30pm: Discussion on decoherence with visitor Dr. Jens Eisert (Potsdam)
13-27 August: AK in Europe
29 August: Joe reviews quantum to classical transition
8 September (Thursday): Joe reviews decoherence.

Visitors:
Dr. B. Bodmann (U. of Texas): end of May
Prof. Robert Brout (U. of Bruxelles): mid July- mid August

Winter 05:

31 Jan. Sasha: From crystals to quasicrystals
4 Feb. David: Growing lattices in cosmology
10 Feb. Rob: Aspects of sampling theory I
14 Feb. Rob: Aspects of sampling theory II
21 Feb. Rob: Aspects of sampling theory III
28 Feb. Sasha: Euler-Maclaurin
3 Mar. AK talks at Guelph Math student club (1pm)
and at Guelph Math Colloquium (3pm)
7 Mar. Sasha: Euler Maclaurin
21 Mar. Sasha: reports on his visit to CRM Montreal
28 Mar. David: on coherent states
4 Apr. David: on squeezed states
25 Apr. Sasha: on path integration (in MC5136)

Visitors:
Prof. J. Patera (CRM and U. of Montreal): mid January
Prof. R. Brout (U. Libre de Bruxelles): end January/early February, all of April.
Dr. G. Mangano (U. of Naples, Italy and Syracuse, NY): mid March
Prof. R. Easther (Yale Univ.): mid March

Fall 04:

20 Sep.: group is at COSMO-04
27 Sep.: conference reviews
4 Oct.: conference reviews
11 Oct.: holiday (thanksgiving)
12.Oct: AK talks at Guelph
18. Oct: Larissa on backreaction
25. Oct: Sven on backreaction
1 Nov: David, introducing aspects of inflation
8 Nov: David on squeezed states in inflation
15 Nov: David on temporal coherence of inflationary fluctuations
22 Nov: David on quantum -> classical transition
29 Nov: David on decoherence in inflation

Spring 04:

3 May: Dr. Bernhard Bodmann on measures of entropy
10 May: N/A
17 May: Tom on the Casimir Effect
24 May: (Victoria day)
31 May: Tyler on decoherence
7 June: Rob on topics in sampling theory
18 June, 11am: reports on Winnipeg conference
5 July: Sasha reports on Winnipeg conference
12 July: Larissa on aspects of QFT I
19 July: Larissa on aspects of QFT II
26 July: Tom on aspects of phi^4 theory
3 Aug.: Tom on Feynman rules
9 Aug.: Sasha on the genetic code
19 Aug. (Thursday): Tom on Casimir effect
23 Aug.: Larissa on path integral in QFT (I)
30 Aug.: Sven on path integral in QFT (II)
7 Sep: Rob on back reaction
13 Sep: discussion

Winter 04:

9 Feb: Sasha on negative entropy
16 Feb: Rob on sampling I
23 Feb: Rob on sampling II
1 Mar: Tom on vacuum fluctuations
8 Mar: Matt on superoscillations
15 Mar: Rob on mode creation mechanism
22 Mar: Rob (20min) + Tyler on Q. info.
29 Mar: Larissa on singularity in mode equation
5 April: Amjad on the adiabatic theorem

Prof. Kempf's Physics of Information Group