March 28, 1994 - March 28, 2027

  • Date:20MondayNovember 2017

    From strong passivity to extended second law of thermodynamics and new thermodynamic predictions on quantum microscopic systems

    More information
    Time
    14:15
    Lecturer
    Ram Uzdin, Technion
    Organizer
    Department of Physics of Complex Systems
    Contact
    AbstractShow full text abstract about To thermodynamically address quantum nanoscopic scenarios th...»
    To thermodynamically address quantum nanoscopic scenarios that involve very small heat sources and strong system-bath correlation, we suggest a new framework that is based on the principle of passivity. Passivity allows to get many thermodynamic inequalities that constrain observables that were so far outside the scope of thermodynamics. As an example we derive lower and upper bounds on the system-bath energy covariance in the Jaynes-Cummings model (spin-oscillator interaction). Using a stronger version of the passivity principle, we extend the second law to handle initial system-bath correlation (which is common in microscopic strong system-bath coupling scenarios). In addition, it is shown that passivity-based inequalities can detect "sub-Maxwellian” demons that apply a feedback that is too subtle to be detected using the standard second law. Finally an intrinsically quantum feature of strong passivity is exploited to assign a thermodynamic cost for quantum coherence generation.

    Lecture