PIRSA:C16015 - Concepts and Paradoxes in a Quantum UniversePODCAST Subscribe to podcast

Concepts and Paradoxes in a Quantum Universe


Collection URL: http://pirsa.org/C16015

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PIRSA:16060053  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Features of Sequential Weak Measurements
Speaker(s): Lajos Diósi
Abstract: I discuss the outcome statistics of sequential weak measurement of general observables. In sequential weak measurement of canonical variables, without post-selection, correlations yield the corresponding correlations of the Wigner function. Outcome correlations in spin-1/2 sequential weak measurem... read more
Date: 22/06/2016 - 9:45 am

PIRSA:16060054  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Uncertainty and Complementarity Relations with Weak values
Speaker(s): Arun Pati
Abstract: The products of weak values of quantum observables have interesting implications in deriving quantum uncertainty and complementarity relations for both weak and strong measurement statistics. We show that a product representation formula allows the standard Heisenberg uncertainty relation to be deri... read more
Date: 22/06/2016 - 11:00 am

PIRSA:16060051  ( MP4 Medium Res , MP3 , PDF ) Which Format?
The meaning of weak values
Speaker(s): Lev Vaidman
Abstract: The weak value, as an expectation value, requires an ensemble to be found. Nevertheless, we argue that the physical meaning of the weak value is much more close to the physical meaning of an eigenvalue than to the physical meaning of an expectation value. Theoretical analysis and experimental result... read more
Date: 22/06/2016 - 11:45 am

PIRSA:16060056  ( MP4 Medium Res , MP3 , PDF ) Which Format?
10 Minutes of the Aharonov-Bohm effect and 20 minutes of a new superconducting gravitational-wave detector
Speaker(s): Armen Gulian
Date: 22/06/2016 - 2:00 pm

PIRSA:16060057  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Our Quantum World, Contextuality, and Bohmian Mechanics
Speaker(s): Boris Braverman
Abstract: Our universe is at its heart quantum mechanical, yet classical behaviour is seen everywhere. I will discuss the scales that determine the quantum to classical transition and the prospects for the observation of ever more macroscopic quantum behaviour. I will then discuss how paradoxes in quantum mec... read more
Date: 22/06/2016 - 2:30 pm

PIRSA:16060058  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Self-locating uncertainty and the many worlds interpretation
Speaker(s): Kelvin McQueen
Abstract: According to the many worlds interpretation (MWI), quantum mechanics in its simplest form (no collapse or hidden variables) is complete. A primary objection to the MWI is that it fails to account for the Born rule. The most prominent response to this objection comes from the decision-theoretic progr... read more
Date: 22/06/2016 - 3:30 pm

PIRSA:16060059  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Does time-symmetry in quantum theory imply retrocausality?
Speaker(s): Matthew Leifer
Abstract: The two-state vector formalism of Aharonov and collaborators introduces a backwards-evolving state in order to restore time symmetry to quantum measurement theory. The question then arises, does any time-symmetric account of quantum theory necessarily involve retrocausality (influences that travel b... read more
Date: 22/06/2016 - 4:00 pm

PIRSA:16060060  ( MP4 Medium Res , MP3 , PDF ) Which Format?
From quantum reference frames to quantum asymmetry
Speaker(s): Robert Spekkens
Date: 22/06/2016 - 4:45 pm

PIRSA:16060070  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Finally making sense of Quantum Mechanics, part 4
Speaker(s): Yakir Aharonov
Date: 23/06/2016 - 9:00 am

PIRSA:16060062  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Quantum Mechanics is Not Non-Local
Speaker(s): Bill Unruh
Abstract: Bell's inequality is often stated as proving that quantum mechanics is non-local (rather than non-realistic, which apparently shows that physicists have more problems with non-realism than with non-locality). I will argue that the purpose of the use of locality in Bell's argument (in the CHSH form) ... read more
Date: 23/06/2016 - 9:45 am

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