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Maxwell’s demon with a Szilard box, as proposed by Bennett. A measurement detects on which side of the inserted separator the particle is, and extracts work with a piston in either case. The cylinder is left in its original state, apparently creating a perpetuum mobile with net work gain. However, the measurement outcome (represented by ‘L’ or ‘R’) had to be stored in a memory register, which was initially in some pure state (represented by ‘—’) and the work cost of resetting it to a pure state again compensates the work gain.

News

26.04.2016

New PhD Student

Starting on the 2nd of May, Elisa Bäumer, our new PhD student, will join the QIT group at ETH Zurich. We are looking forward to working on exciting research with you. Have a good start! Read more 

27.03.2014

Nature Perspective

Interested in quantum cryptography, randomness and free will? Don't miss out on our Nature perspecitve article about The ultimate physical limits of privacy!  Read more 

07.06.2013

Science Article

Our manuscript "Entanglement Polytopes: Multiparticle Entanglement from Single-Particle Information" has recently appeared in Science Read more 

Events

QIT group meeting

Friday, 27 May 2016
16:00 E41.1 --Djordje Pantic (Master's Thesis)       

Friday, 20 May 2016
16:00 E41.1 -- Vojtech Havlicek (ETH)

Friday, 13 May 2016
16:00 E41.1 --  

Friday, 6 May 2016
16:00 E41.1 -- Andrei Lebedev (ETH)

Friday, 29 April 2016
16:00 E41.1 -- What's up?

Friday, 22 April 2016
16:00 E41.1 -- New time for QIT Group Meeting

Monday, 18 April 2016
No Group Meeting (Sechseläuten)

Monday, 11 April 2016
16:30 E41.1 -- Joe Renes

Monday, 4 April 2016
16:30 E41.1 -- Frederik Lohof (Master's Thesis)

Monday, 27 March 2016
No group meeting (Easter)

Monday, 21 March 2016
16:30 E41.1 -- Christian Klumpp (Master's Thesis)

Friday, 18 March 2016
15:30  E41.1 -- Martí Perarnau (ICFO)

Monday, 14 March 2016
16:30 E41.1 -- Elisa Bäumer (Master's Thesis)

Monday, 7 March 2016
16:30  E41.1 -- Roland Riek (ETH)

Monday, 29 February 2016
16:30  K52 -- Matthias Strodtkoetter (Master's thesis)

Monday, 22 February 2016
15:15  E41.1 -- Michael Walter (Stanford)

Monday, 15 February 2016
15:15  E41.1 -- Tobias Sutter (ETH)

Monday, 1 February 2016
15:15 E41.1 -- Karen Hovhannisyan (ICFO)

Monday, 25 January 2016
15:15 K51 -- QIP review

 
 
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05.05.2016
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