TY - JOUR
T1 - Work extraction via quantum nondemolition measurements of qubits in cavities
T2 - Non-Markovian effects
AU - Gelbwaser-Klimovsky, D.
AU - Erez, N.
AU - Alicki, R.
AU - Kurizki, G.
N1 - DIP; ISF; BSF; CONACYTThis research was supported by DIP, ISF, BSF, and CONACYT.
PY - 2013/8/16
Y1 - 2013/8/16
N2 - We show that frequent nondemolition measurements of a quantum system immersed in a thermal bath allow the extraction of work in a closed cycle from the system-bath interaction (correlation) energy, a hitherto unexploited work resource. It allows for work even if no information is gathered or the bath is at zero temperature, provided the cycle is within the bath memory time. The predicted work resource may be the basis of quantum engines embedded in a bath with long memory time, such as the electromagnetic bath of a high-Q cavity coupled to two-level systems.
AB - We show that frequent nondemolition measurements of a quantum system immersed in a thermal bath allow the extraction of work in a closed cycle from the system-bath interaction (correlation) energy, a hitherto unexploited work resource. It allows for work even if no information is gathered or the bath is at zero temperature, provided the cycle is within the bath memory time. The predicted work resource may be the basis of quantum engines embedded in a bath with long memory time, such as the electromagnetic bath of a high-Q cavity coupled to two-level systems.
UR - http://www.scopus.com/inward/record.url?scp=84884838375&partnerID=8YFLogxK
U2 - https://doi.org/10.1103/PhysRevA.88.022112
DO - https://doi.org/10.1103/PhysRevA.88.022112
M3 - مقالة
SN - 1050-2947
VL - 88
JO - Physical Review A - Atomic, Molecular, and Optical Physics
JF - Physical Review A - Atomic, Molecular, and Optical Physics
IS - 2
M1 - 022112
ER -