240 citations · 1.3k across the 22 of their papers we have counts for
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Quantum nonequilibrium equalities with absolute irreversibility
Ken Funo, Yûto Murashita, Masahito Ueda
We derive quantum nonequilibrium equalities in absolutely irreversible processes. Here by absolute irreversibility we mean that in the backward process the density matrix does not…
Strong Local Passivity in Finite Quantum Systems
Michael Frey, Ken Funo, Masahiro Hotta
Passive states of quantum systems are states from which no system energy can be extracted by any cyclic (unitary) process. Gibbs states of all temperatures are passive. Strong loca…
General achievable bound of extractable work under feedback control
Yuto Ashida, Ken Funo, Yûto Murashita +1
A general achievable upper bound of extractable work under feedback control is given, where nonequilibrium equalities are generalized so as to be applicable to error-free measureme…
Nonequilibrium Equalities in Absolutely Irreversible Processes
Yûto Murashita, Ken Funo, Masahito Ueda
We generalize nonequilibrium integral equalities to situations involving absolutely irreversible processes for which the forward-path probability vanishes and the entropy productio…