The Experts below are selected from a list of 537 Experts worldwide ranked by ideXlab platform

Tomá Š Opatrný - One of the best experts on this subject based on the ideXlab platform.

  • The maser as a Reversible Heat Engine
    2020
    Co-Authors: Tomá Š Opatrný
    Abstract:

    In a maser, a state selector sends excited molecules or atoms to a resonant cavity, while ground-level particles are not allowed to enter the resonator. The excited particles radiate their energy in the form of coherent electromagnetic oscillation. In this way the thermal energy of the atoms is transformed into useful work. Is this transformation equivalent to the Maxwell demon violating the second law? We explain the thermodynamics of an idealized maser system which works as a Reversible Heat Engine and show how the second law reveals its validity during the conversion of Heat into coherent radiation and mechanical work. We discuss different working regimes of the system. In particular, the ideal Engine can either work with two Heat reservoirs and convert Heat into maser radiation with the Carnot efficiency, or, if working with a single Heat reservoir, the Engine can convert mechanical work entirely into maser radiation

Meister B. K. - One of the best experts on this subject based on the ideXlab platform.

  • Quantum mechanical Carnot Engine
    'IOP Publishing', 2000
    Co-Authors: Bender C. M., Brody D. C., Meister B. K.
    Abstract:

    A cyclic thermodynamic Heat Engine runs most efficiently if it is Reversible. Carnot constructed such a Reversible Heat Engine by combining adiabatic and isothermal processes for a system containing an ideal gas. Here, we present an example of a cyclic Engine based on a single quantum-mechanical particle confined to a potential well. The efficiency of this Engine is shown to equal the Carnot efficiency because quantum dynamics is Reversible. The quantum Heat Engine has a cycle consisting of adiabatic and isothermal quantum processes that are close analogues of the corresponding classical processes.Comment: 10 page

Bernhard K. Meister - One of the best experts on this subject based on the ideXlab platform.

  • Quantum mechanical Carnot Engine
    Journal of Physics A: Mathematical and General, 2000
    Co-Authors: Carl M. Bender, Dorje C. Brody, Bernhard K. Meister
    Abstract:

    A cyclic thermodynamic Heat Engine runs most efficiently if it is Reversible. Carnot constructed such a Reversible Heat Engine by combining adiabatic and isothermal processes for a system containing an ideal gas. Here, we present an example of a cyclic Engine based on a single quantum-mechanical particle confined to a potential well. The efficiency of this Engine is shown to equal the Carnot efficiency because quantum dynamics is Reversible. The quantum Heat Engine has a cycle consisting of adiabatic and isothermal quantum processes that are close analogues of the corresponding classical processes.

Bender C. M. - One of the best experts on this subject based on the ideXlab platform.

  • Quantum mechanical Carnot Engine
    'IOP Publishing', 2000
    Co-Authors: Bender C. M., Brody D. C., Meister B. K.
    Abstract:

    A cyclic thermodynamic Heat Engine runs most efficiently if it is Reversible. Carnot constructed such a Reversible Heat Engine by combining adiabatic and isothermal processes for a system containing an ideal gas. Here, we present an example of a cyclic Engine based on a single quantum-mechanical particle confined to a potential well. The efficiency of this Engine is shown to equal the Carnot efficiency because quantum dynamics is Reversible. The quantum Heat Engine has a cycle consisting of adiabatic and isothermal quantum processes that are close analogues of the corresponding classical processes.Comment: 10 page

Carl M. Bender - One of the best experts on this subject based on the ideXlab platform.

  • Quantum mechanical Carnot Engine
    Journal of Physics A: Mathematical and General, 2000
    Co-Authors: Carl M. Bender, Dorje C. Brody, Bernhard K. Meister
    Abstract:

    A cyclic thermodynamic Heat Engine runs most efficiently if it is Reversible. Carnot constructed such a Reversible Heat Engine by combining adiabatic and isothermal processes for a system containing an ideal gas. Here, we present an example of a cyclic Engine based on a single quantum-mechanical particle confined to a potential well. The efficiency of this Engine is shown to equal the Carnot efficiency because quantum dynamics is Reversible. The quantum Heat Engine has a cycle consisting of adiabatic and isothermal quantum processes that are close analogues of the corresponding classical processes.