PERIMETER INSTITUTE RECORDED SEMINAR ARCHIVE
 | PIRSA:11050026
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Exact infinite-time statistics of the Loschmidt echo for a quantum quench Speaker(s): Paolo Zanardi
Abstract: The equilibration dynamics of a closed quantum system is encoded in the long-time distribution function of generic observables. In this paper we consider the Loschmidt echo generalized to finite temperature, and show that we can obtain an exact expression for its long-time distribution for a closed ... read more
Date: 06/05/2011 - 3:30 pm
Series: Condensed Matter
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 | PIRSA:10050064
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Unitary Equilibrations: Temporal and Hilbert Space Typicality Loschmidt Echo Speaker(s): Paolo Zanardi
Abstract: Closed quantum systems evolve unitarily and therefore cannot converge in a strong sense to an equilibrium state starting out from a generic pure state. Nevertheless for large system size one observes temporal typicality. Namely, for the overwhelming majority of the time instants, the statistics of o... read more
Date: 25/05/2010 - 11:45 am
Collection: Emergence and Entanglement
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 | PIRSA:05120004
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Holonomic quantum computation in decoherence-free subspaces Speaker(s): Paolo Zanardi
Abstract: will discuss how to realize, by means of non-abelian quantum holonomies, a set of universal quantum gates acting on decoherence-free subspaces and subsystems. In this manner the quantum coherence stabilization virtues of decoherence-free subspaces and the fault-tolerance of all-geometric holonomic ... read more
Date: 06/12/2005 - 4:00 pm
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