We investigate the thermodynamics and fluctuations of a finite-time quantum Otto engine
alter-natively driven by a hot-squeezed and a cold thermal reservoir. We show that reservoir …

In this paper we study a quantum Otto thermal machine where the working substance is
composed of N identical qubits coupled to a single mode of a bosonic field, where the atoms …

We demonstrate that the efficiency of effective-negative-temperature-based quantum Otto
engines, already known to outperform their traditional counterparts operating with positive …

In this work, we study an autonomous refrigerator composed of three qubits operating with
one of the reservoirs at negative temperatures, which has the purpose of cooling one of the …

In this work we analyze an Otto-type cycle operating with a working substance composed of
a quantum harmonic oscillator (QHO). Unlike other studies in which the work extraction is …

For an Otto cycle there always exists a trade-off between the cycle efficiency and the output
power due to the requirement of cycle length. The shortcut to adiabatic (STA) technology …

We examine the behavior of quantum discord in a scenario where two identical
noninteracting qubits interact with a shared squeezed environment at zero temperature. Our …

We analyze the performance of a quantum Stirling heat engine (QSHE), using a two-level
system and a harmonic oscillator as the working medium, that is in contact with a squeezed …

Quantum thermal machines make use of non-classical thermodynamic resources, one of
which include interactions between elements of the quantum working medium. In this paper …

We formulate a protocol for a four-stroke quantum Otto engine that is capable of achieving
superior performance when operating between two thermal reservoirs: one at a positive spin …