Paweł Horodecki - Profil naukowy - MOST Wiedzy

Wyszukiwarka

Media społecznościowe

Kontakt

Profesor

Miejsce pracy
Gmach B pokój 408
Telefon
(58) 348 60 69

Wybrane publikacje

  • Thermodynamical approach to quantifying quantum correlations

    - PHYSICAL REVIEW LETTERS - Rok 2002

    We consider the amount of work which can be extracted from a heat bath using a bipartite state ρ shared by two parties. In general it is less then the amount of work extractable when one party is in possession of the entire state. We derive bounds for this “work deficit” and calculate it explicitly for a number of different cases. In particuar, for pure states the work deficit is exactly equal to the distillable entanglement of...

    Pełny tekst do pobrania w serwisie zewnętrznym

  • Direct estimation of linear and nonlinear functionals of quantum state

    - PHYSICAL REVIEW LETTERS - Rok 2002

    We present a simple quantum network, based on the controlled-SWAP gate, that can extract certain properties of quantum states without recourse to quantum tomography. It can be used as a basic building block for direct quantum estimations of both linear and nonlinear functionals of any density operator. The network has many potential applications ranging from purity tests and eigenvalue estimations to direct characterization of...

  • Dynamics of quantum entanglement

    - PHYSICAL REVIEW A - Rok 2002

    A model of discrete dynamics of entanglement of a bipartite quantum state is considered. It involves a global unitary dynamics of the system and periodic actions of local bistochastic or decaying channel. For initially pure states the decay of entanglement is accompanied by an increase of von Neumann entropy of the system. We observe and discuss revivals of entanglement due to unitary interaction of subsystems. For some mixed states...

Uzyskane stopnie/tytuły naukowe

wyświetlono 1721 razy