Format results

Talk

Discretizing the manyelectron Schrodinger Equation
Steven White University of California, Irvine

Emergence of conformal symmetry in critical spin chains
Ashley Milsted California Institute of Technology




The continuous multiscale entanglement renormalization ansatz (cMERA)
Guifre Vidal Alphabet (United States)

Unitary Networks from the Exact Renormalization of Wavefunctionals
Rob Leigh University of Illinois UrbanaChampaign

Tensor networks and Legendre transforms
Brian Swingle University of Maryland, College Park


Talk

PSI 2016/2017  Explorations in Quantum Information  Lecture 15
David Cory Institute for Quantum Computing (IQC)

PSI 2016/2017  Explorations in Quantum Information  Lecture 14
David Cory Institute for Quantum Computing (IQC)

PSI 2016/2017  Explorations in Quantum Information  Lecture 13
David Cory Institute for Quantum Computing (IQC)

PSI 2016/2017  Explorations in Quantum Information  Lecture 12
David Cory Institute for Quantum Computing (IQC)

PSI 2016/2017  Explorations in Quantum Information  Lecture 11
David Cory Institute for Quantum Computing (IQC)

PSI 2016/2017  Explorations in Quantum Information  Lecture 10
David Cory Institute for Quantum Computing (IQC)

PSI 2016/2017  Explorations in Quantum Information  Lecture 9
David Cory Institute for Quantum Computing (IQC)

PSI 2016/2017  Explorations in Quantum Information  Lecture 8
David Cory Institute for Quantum Computing (IQC)


Talk

PSI 2016/2017  Quantum Information Review  Lecture 12
Michele Mosca Institute for Quantum Computing (IQC)

PSI 2016/2017  Quantum Information Review  Lecture 11
Michele Mosca Institute for Quantum Computing (IQC)

PSI 2016/2017  Quantum Information Review  Lecture 10
Eduardo MartinMartinez Institute for Quantum Computing (IQC)

PSI 2016/2017  Quantum Information Review  Lecture 9
Eduardo MartinMartinez Institute for Quantum Computing (IQC)

PSI 2016/2017  Quantum Information Review  Lecture 8
Kevin Resch Institute for Quantum Computing (IQC)

PSI 2016/2017  Quantum Information Review  Lecture 7
Kevin Resch Institute for Quantum Computing (IQC)

PSI 2016/2017  Quantum Information Review  Lecture 6
Daniel Gottesman University of Maryland, College Park

PSI 2016/2017  Quantum Information Review  Lecture 5
Daniel Gottesman University of Maryland, College Park


Talk

Direct experimental reconstruction of the Bloch sphere

Michael Mazurek Institute for Quantum Computing (IQC)

Matthew Pusey University of York


Singlephoton test of HyperComplex Quantum Theories
Lorenzo Procopio Universität Wien



Experimental implementation of quantumcoherent mixtures of causal relations
Robert Spekkens Perimeter Institute for Theoretical Physics


Talk




Does relativistic causality constrain interference phenomena?
Markus Müller Institute for Quantum Optics and Quantum Information (IQOQI)  Vienna






Talk


Gravity Basics  1
Veronika Hubeny University of California System

QI Basics  1
Patrick Hayden Stanford University

Entanglement  1
Robert Spekkens Perimeter Institute for Theoretical Physics

Bell’s Theorem
Adrian Kent University of Cambridge

GR: Actions and Equations
David Kubiznak Charles University

A new perspective on holographic entanglement
Matthew Headrick Brandeis University

QI Basics  2
John Watrous IBM (Canada)


Talk

Welcome and Opening Remarks

Marina Cortes Institute for Astrophysics and Space Sciences

Lee Smolin Perimeter Institute for Theoretical Physics

Neil Turok University of Edinburgh


The origin of arrows and time I

David Albert Columbia University

Steve Weinstein University of Waterloo


The origin of arrows of time II

Sean Carroll California Institute of Technology (Caltech)  Division of Physics Mathematics & Astronomy

Marina Cortes Institute for Astrophysics and Space Sciences

Tim Koslowski Universidad Nacional Autónoma De Mexico (UNAM)


The origin of arrows of time II cont.

Sean Carroll California Institute of Technology (Caltech)  Division of Physics Mathematics & Astronomy

Marina Cortes Institute for Astrophysics and Space Sciences

Tim Koslowski Universidad Nacional Autónoma De Mexico (UNAM)


Testing time asymmetry in the early universe

Brian Keating University of California, San Diego

Andrew Liddle University of Lisbon

Richard Muller University of California System


The fate of the big bang

Abhay Ashtekar Pennsylvania State University

Neil Turok University of Edinburgh


Time as Organization – Downward Caustation, Structure and Complexity I
Barbara Drossel Technische Universität Darmstadt

Time as Organization – Downward Caustation, Structure and Complexity II

Stuart Kauffman Santa Fe Institute (SFI)

George Ellis University of Cape Town



Talk


Finally making sense of Quantum Mechanics, part 1
Yakir Aharonov Chapman University

How to count one photon and get a(n average) result of 1000...
Aephraim Steinberg University of Toronto


The Quantum Tip of the TwoVector Iceberg
Avshalom Elitzur Israeli Institute for Advanced Research

The arrow of time for continuous quantum measurements
Andrew Jordan University of Rochester

Observation of AharonovBohm effect with quantum tunneling
Yutaka Shikano Institute for Molecular Science, National Institutes of Natural Sciences



Talk





Protective Measurement and Ergodicity
Yakir Aharonov Chapman University

Sudden Sharp Forces and Nonlocal Interactions
Yakir Aharonov Chapman University




Talk

Gravity Dual of Quantum Information Metric
Tadashi Takayanagi Yukawa Institute for Theoretical Physics

A new perspective on holographic entanglement
Matthew Headrick Brandeis University

Universal holographic description of CFT entanglement entropy
Thomas Faulkner University of Illinois UrbanaChampaign

Geometric Constructs in AdS/CFT
Veronika Hubeny University of California System

Do black holes create polyamory
Jonathan Oppenheim University College London

Tensor Network Renormalization and the MERA
Glen Evenbly Georgia Institute of Technology

Entanglement renormalization for quantum fields
Jutho Haegeman Ghent University

Holographic quantum errorcorrecting codes: Toy models for the bulk/boundary correspondence
Fernando Pastawski California Institute of Technology


Nonabelian symmetries can increase entanglement and induce critical dynamics
Shayan Majidy Perimeter Institute for Theoretical Physics

Bosonic quantum sensing and communication in the presence of loss and noise  VIRTUAL
Haowei Shi University of Southern California

Tensor Networks for Quantum Field Theories II
Tensor Networks for Quantum Field Theories II 
PSI 2016/2017  Explorations in Quantum Information (Cory)
PSI 2016/2017  Explorations in Quantum Information (Cory) 
PSI 2016/2017  Quantum Information (Multiple Lecturers)
PSI 2016/2017  Quantum Information (Multiple Lecturers) 
Experimental Quantum Foundations
Experimental Quantum Foundations 
Formulating and Finding HigherOrder Interference
Formulating and Finding HigherOrder Interference



Concepts and Paradoxes in a Quantum Universe
Concepts and Paradoxes in a Quantum Universe


Quantum Information in Quantum Gravity II
Quantum Information in Quantum Gravity II 
Nonabelian symmetries can increase entanglement and induce critical dynamics
Shayan Majidy Perimeter Institute for Theoretical Physics
Measuring the temperature of your coffee should not change the amount of coffee in your cup. This holds because the operators representing the coffee’s energy and volume commute. The intuitive assumption that conserved quantities, also known as charges, commute, underpins basic physics derivations, like that of the thermal state's form and Onsager coefficients. Yet, operators' failure to commute plays a key role in quantum theory, e.g. underlying uncertainty relations. Lifting this assumption has spawned a growing subfield of quantum manybody physics [1].
How can one argue that charges’ noncommutation caused a result? To isolate the effects of charges’ noncommutation, we created analogous models that differ in whether their charges commute and discovered more entanglement in the noncommutingcharge model [2]. We further introduce noncommuting charges (an SU(2) symmetry) into monitored quantum circuits, circuits with unitary evolutions and midcircuit projective measurements. Numerically, we find that the SU(2)symmetric model has a critical phase in place of the arealaw phase typically found in these circuits [3]. I will focus on the results from Ref 2 and 3. Time permitting, I'll briefly explain how one can use Lie Algebra theory to build the Hamiltonians necessary for testing the predictions of noncommuting charge physics [4].
[1] Majidy et al. "Noncommuting conserved charges in quantum thermodynamics and beyond." Nat Rev Phys (2023)
[2] Majidy et al. "NonAbelian symmetry can increase entanglement entropy.” PRB (2023)
[3] Majidy et al. "Critical phase and spin sharpening in SU(2)symmetric monitored quantum circuits." PRB (2023)
[4] Yunger Halpern and Majidy “How to build Hamiltonians that transport noncommuting charges in quantum thermodynamics” npj QI (2022)
Zoom link https://pitp.zoom.us/j/97193579200?pwd=MkdmbWo1S2lUcUZtUFpORk5VbnFBdz09

Bosonic quantum sensing and communication in the presence of loss and noise  VIRTUAL
Haowei Shi University of Southern California
Squeezing has proven to be a powerful tool for suppressing noise in bosonic quantum sensing and communication. However, it is fragile and the resulting quantum advantage is extremely vulnerable to loss and noise. In this seminar, I will first overview the method of formulating loss and noise and thereby characterizing the practical quantum advantages. Then I will present our recent progress on entanglementassisted protocols using twomode squeezedvacuum states, which are robust to loss and noise. I will demonstrate the quantum advantages in three scenarios: dark matter search, absorption spectroscopy, and telecommunication. Notably, we derived the ultimate precision limit of noise sensing and dark matter search. As a result, we found the twomode squeezed vacuum is the optimal quantum source for dark matter search at the limit of strong squeezing. This optimality extends to entanglementassisted communication. In each of the presented scenarios, entanglementassisted protocols yield quantum advantages of orders of magnitude over classical protocols.

Zoom link https://pitp.zoom.us/j/94873478582?pwd=c1dxNEVtMGx0ZU4vZjRvTU5OakZoUT09