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PERIMETER INSTITUTE RECORDED SEMINAR ARCHIVE

PIRSA:C15026 - Information Theoretic Foundations for PhysicsPODCAST Subscribe to podcast

Information Theoretic Foundations for Physics

Organizer(s):

Collection URL: http://pirsa.org/C15026


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PIRSA:15050102  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Welcome and Opening Remarks
Speaker(s):
Abstract:
Date: 11/05/2015 - 9:00 am

PIRSA:15050071  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Indefinite causal order in quantum mechanics
Speaker(s): Caslav Brukner
Abstract: One of the most deeply rooted concepts in science is causality: the idea that events in the present are caused by events in the past and, in turn, act as causes for what happens in the future. If an event A is a cause of an effect B, then B cannot be a cause of A. Recently we proposed a framework t... read more
Date: 11/05/2015 - 9:15 am

PIRSA:15050074  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Agency, causal structure and locality in Qbism
Speaker(s): Ruediger Schack
Abstract: In QBism, a quantum state represents an agent's personal degrees of belief regarding the consequences of her actions on any part of her external world. The quantum formalism provides consistency criteria that enable the agent to make better decisions. QBism thus gives a central role to the agent, or... read more
Date: 11/05/2015 - 10:05 am

PIRSA:15050072  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Towards an information-theoretic foundation of (quantum) thermodynamics
Speaker(s): Giulio Chiribella
Abstract: In the classical world of Newton and Laplace, fundamental physics and thermodynamics do not blend well: the former puts forward a picture of nature where states are pure and processes are fundamentally reversible, while the latter deals with scenarios where states are mixed and processes are irrever... read more
Date: 11/05/2015 - 11:15 am

PIRSA:15050099  ( MP4 Medium Res , MP3 , PDF ) Which Format?
The second laws of quantum thermodynamics
Speaker(s): Jonathan Oppenheim
Abstract:
Date: 11/05/2015 - 12:05 pm

PIRSA:15050073  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Entropy, majorization, and thermodynamics in general probabilistic theories.
Speaker(s): Howard Barnum
Abstract: Much progress has recently been made on the fine-grained thermodynamics and statistical mechanics of microscopic physical systems, by conceiving of thermodynamics as a resource theory: one which governs which transitions between states are possible using specified "thermodynamic" (e.g. adiabatic or ... read more
Date: 11/05/2015 - 2:15 pm

PIRSA:15050076  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Limitations of statistical mechanics for quantum thermodynamics.
Speaker(s): David Jennings
Abstract: How should we describe the thermodynamics of extreme quantum regimes, where features such as coherence and entanglement dominate? I will discuss possible limitations of a traditional statistical mechanics approach, and then describe work that applies modern techniques from the theory of quantum i... read more
Date: 11/05/2015 - 3:05 pm

PIRSA:15050079  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Information and the architecture of quantum theory
Speaker(s): Philipp Hoehn
Abstract: I will argue that, apart from their ever growing number of applications to physics, information theoretic concepts also offer a novel perspective on the physical content and architecture of quantum theory and spacetime. As a concrete example, I will discuss how one can derive and understand the form... read more
Date: 12/05/2015 - 9:00 am

PIRSA:15050078  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Quantum theory and spacetime: allies, not enemies
Speaker(s): Markus Mueller
Abstract: It has become conventional wisdom to say that quantum theory and gravitational physics are conceptually so different, if not incompatible, that it is very hard to unify them. However, in the talk I will argue that the operational view of (quantum) information theory adds a very different twist to th... read more
Date: 12/05/2015 - 9:50 am

PIRSA:15050080  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Bringing General Relativity into the Operational Probabilistic Framework
Speaker(s): Lucien Hardy
Abstract: I will discuss my work (in progress) to formulate General Relativity as an operational theory which includes probabilities and also agency (knob settings). The first step is to find a way to discuss operational elements of GR. For this I adapt an approach due to Westman and Sonego. I assert that all... read more
Date: 12/05/2015 - 11:00 am

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