TY  - JOUR
AU  - Ansari, Mohammad
TI  - Entropy production in a photovoltaic cell
JO  - Physical review / B
VL  - 95
IS  - 17
SN  - 2469-9950
CY  - Woodbury, NY
PB  - Inst.
M1  - FZJ-2017-05062
SP  - 174302
PY  - 2017
AB  - We evaluate entropy production in a photovoltaic cell that is modeled by four electronic levels resonantly coupled to thermally populated field modes at different temperatures. We use a formalism recently proposed, the so-called multiple parallel worlds, to consistently address the nonlinearity of entropy in terms of density matrix. Our result shows that entropy production is the difference between two flows: a semiclassical flow that linearly depends on occupational probabilities, and another flow that depends nonlinearly on quantum coherence and has no semiclassical analog. We show that entropy production in the cells depends on environmentally induced decoherence time and energy detuning. We characterize regimes where reversal flow of information takes place from a cold to hot bath. Interestingly, we identify a lower bound on entropy production, which sets limitations on the statistics of dissipated heat in the cells.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000405207400002
DO  - DOI:10.1103/PhysRevB.95.174302
UR  - https://juser.fz-juelich.de/record/835930
ER  -