Thermodynamics of quantum heat engines

Geometric phaselike effects in a quantum heat engine

“…Also, p * h,d for a fixed set of other parameters linearly depends on p c and this linearity is also independent of the phase difference as shown in Fig.(3a). This linear dependence of p * h,d on p c was also observed in the nondriven heat engine [44].…”

“…Similar to a non-driven engine [44], the dynamic flux can be maximized with respect to the coherence parameter p h (dashed line in Fig. (2a) for a fixed p c = 0.4).…”

“…However, there is dissipation in the cavity mode due to stimulated emission. Since the cavity occupation, n l , has to be kept constant, this dissipation is proportional to ln(ñ l /n l ) [44]. By taking care of this dissipation, the actual work done by the QHE can be written as,…”

“…The dimensionless parameters, p h and p c represent quantum coherence control parameters associated with the hot and cold baths respectively [18,34,44]. These two parameters are a measure of interference between the transitions involving the ground states and the two excited states.…”

“…being a fictitious temperature of the cavity [44]. The dimensionless parameters, p h and p c represent quantum coherence control parameters associated with the hot and cold baths respectively [18,34,44].…”