Results 41 to 50 of about 3,155,393 (333)
Coherence effects in the performance of the quantum Otto heat engine [PDF]
Physical Review A, 2018 The working substance fueling a quantum heat engine may contain prominent quantum properties such as coherence and nonclassical correlations. In particular, coherence has been somewhat related to quantum friction, whose origin has been mostly associated ...
Patrice A. Camati +2 more
semanticscholar +1 more source
Performance of discrete heat engines and heat pumps in finite time [PDF]
, 2000 The performance in finite time of a discrete heat engine with internal friction is analyzed. The working fluid of the engine is composed of an ensemble of noninteracting two level systems.
A. Bejan +35 more
core +3 more sources
Efficiency of a Quantum Otto Heat Engine Operating under a Reservoir at Effective Negative Temperatures. [PDF]
Physical Review Letters, 2018 We perform an experiment in which a quantum heat engine works under two reservoirs, one at a positive spin temperature and the other at an effective negative spin temperature, i.e., when the spin system presents population inversion.
R. J. de Assis +6 more
semanticscholar +1 more source
Heat Engine Drives Transport of an FeII4L4 Cage and Cargo
Advances in Materials, 2020 The directed motion of species against a chemical potential gradient is a fundamental feature of living systems, underpinning processes that range from transport through cell membranes to neurotransmission.
Bao-Nguyen T Nguyen +4 more
semanticscholar +1 more source
Quantum coherence in a quantum heat engine [PDF]
Journal of Physics A: Mathematical and Theoretical, 2019 We identify that quantum coherence is a valuable resource in the quantum heat engine, which is designed in a quantum thermodynamic cycle assisted by a quantum Maxwell’s demon. This demon is in a superposed state.
Yun-hao Shi +6 more
semanticscholar +1 more source
Stochastic heat engine using an active particle. [PDF]
Physical Review E, 2019 The topic of microscopic heat engine has undergone intensive research in recent years. Microscopic heat engines can exploit thermal as well as active fluctuations to extract thermodynamic work.
A. Kumari, P. S. Pal, A. Saha, S. Lahiri
semanticscholar +1 more source
The Thermodynamics of Heat Engines [PDF]
Nature, 1903 THIS is a very good specimen of that sort of book which is an amplification of the lecture notes of a professor who has carefully prepared problems for students. We may not always like the way in which he introduces the subject to his pupils, and we may say that it is unphilosophical and even cryptic, and sometimes too brilliant, but such comments are ...
openaire +2 more sources
An interaction-driven many-particle quantum heat engine and its universal behavior [PDF]
npj Quantum Information, 2018 A quantum heat engine (QHE) based on the interaction driving of a many-particle working medium is introduced. The cycle alternates isochoric heating and cooling strokes with both interaction-driven processes that are simultaneously isochoric and ...
Yang-Yang Chen +4 more
semanticscholar +1 more source
Quantum Thermodynamic Cycles and quantum heat engines [PDF]
, 2006 In order to describe quantum heat engines, here we systematically study isothermal and isochoric processes for quantum thermodynamic cycles. Based on these results the quantum versions of both the Carnot heat engine and the Otto heat engine are defined ...
C. H. Bennett +15 more
core +2 more sources