[quantum-info] Today's PIQuDos: Oscar Dahlsten (BOB Room)

[Markus Mueller]

Hi all,

this is a reminder of Oscar Dahlsten's quantum information talk today at 
4pm in the *Bob Room* (note unusual location).


Title: *Laws of thermodynamics beyond the von Neumann regime*
Speaker: *Oscar Dahlsten* (Oxford University & NUS Singapore)

Abstract:
http://arxiv.org/abs/1207.0434
A recent development in information theory is the generalisation of 
quantum Shannon information theory to the operationally motivated smooth 
entropy information theory, which originates in quantum cryptography 
research. In a series of papers the first steps have been taken towards 
creating a statistical mechanics based on smooth entropy information 
theory. This approach turns out to allow us to answer questions one 
might not have thought were possible in statistical mechanics, such as 
how much work one can extract in a given realisation, as a function of 
the failure-probability. This is in contrast to the standard approach 
which makes statements about average work. Here we formulate the laws of 
thermodynamics that this new approach gives rise to. We show in 
particular that the Second Law needs to be tightened. The new laws are 
motivated by our main quantitative result which states how much work one 
can extract or must invest in order to affect a given state change with 
a given probability of success. For systems composed of very large 
numbers of identical and uncorrelated subsystems, which we call the von 
Neumann regime, we recover the standard von Neumann entropy statements.

Joint work with Egloff, Renner and Vedral

Date: Monday, April 29, 2013 - 4:00 pm
Location: Bob Room (405)


Hope to see you there!
Best,
Markus

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