Quantum heat engines: Limit cycles and exceptional points
نویسندگان
چکیده
منابع مشابه
Quantum thermodynamic cycles and quantum heat engines.
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 without ambiguities. We also study the properties of quantum Carnot and Otto heat engines in comparison with their classical counterparts. Relat...
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The study of single particle motion in deformed mean fields has attracted much attention recently because of its relevance to nuclear physics and for the description of metallic clusters [1,2]. For the case of harmonic oscillator potentials, deformations which go beyond a quadrupole deformation are nonintegrable and show chaotic behaviour in the classical and quantum mechanical treatment. Howev...
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We notice that, when a quantum system involves exceptional points, i.e. the special values of parameters where the Hamiltonian loses its self-adjointness and acquires the Jordan block structure, the corresponding classical system also exhibits a singular behaviour associated with restructuring of classical trajectories. The system with the crypto-Hermitian Hamiltonian H = (p + z)/2 − igz and hy...
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Renormalization group limit cycles and more chaotic behavior may be commonplace for quantum Hamiltonians requiring renormalization, in contrast to experience based on classical models with critical behavior, where fixed points are far more common. We discuss the simplest quantum model Hamiltonian identified so far that exhibits a renormalization group with both limit cycle and chaotic behavior....
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ژورنال
عنوان ژورنال: Physical Review E
سال: 2018
ISSN: 2470-0045,2470-0053
DOI: 10.1103/physreve.97.062153