Holevo's bound from a general quantum fluctuation theorem
نویسندگان
چکیده
منابع مشابه
A Quantum Fluctuation Theorem
We consider a quantum system strongly driven by forces that are periodic in time. The theorem concerns the probability P (e) of observing a given energy change e after a number of cycles. If the system is thermostated by a (quantum) thermal bath, e is the total amount of energy transferred to the bath, while for an isolated system e is the increase in energy of the system itself. Then, we show ...
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Previously derived expressions for the characteristic function of work performed on a quantum system by a classical external force are generalized to arbitrary initial states of the considered system and to Hamiltonians with degenerate spectra. In the particular case ∗Corresponding author, tel: +49 821 598 3233, fax:+49 821 598 3222, email: [email protected]
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ژورنال
عنوان ژورنال: Physical Review A
سال: 2012
ISSN: 1050-2947,1094-1622
DOI: 10.1103/physreva.86.044302