Quantum and classical Otto engine for a 2-D material: the case of a graphene quantum dot
arXiv:1909.08694 · doi:10.1103/PhysRevE.101.012116
Abstract
In this work, we study the performance of classical and quantum magnetic Otto cycles with a working substance composed of a single graphene quantum dot modeled by the continuum approach with the use of the zigzag boundary condition. Modulating an external/perpendicular magnetic field, in the classical approach, we found a constant behavior in the total work extracted that is not present in the quantum formulation. We find that, in the classical approach, the engine yielded a greater performance in terms of total work extracted and efficiency as compared with its quantum counterpart. In the classical case, this is due to the working substance being in thermal equilibrium at each point of the cycle, maximizing the energy extracted in the adiabatic strokes.
References in corpus (38)
- The electronic properties of graphene
- Chaotic Dirac billiard in graphene quantum dots
- Shortcuts to adiabaticity: concepts, methods, and applications
- Room temperature magnetic order on zigzag edges of narrow graphene nanoribbons
- Training Schrödinger's cat: quantum optimal control
- A single-atom heat engine
- A nano heat engine beyond the Carnot limit
- Efficiency at maximum power of low dissipation Carnot engines
- The quantum harmonic Otto cycle
- Irreversible Performance of a Quantum Harmonic Heat Engine
- More bang for your buck: Towards super-adiabatic quantum engines
- Quantum Optomechanical Heat Engine
- Quantum Heat Engine With Multi-Level Quantum Systems
- Quantum thermal absorption machines: refrigerators, engines and clocks
- Performance of a quantum heat engine at strong reservoir coupling
- Observation of excited states in a graphene quantum dot
- Analytic Model for the Energy Spectrum of a Graphene Quantum Dot in a Perpendicular Magnetic Field
- Otto refrigerator based on a superconducting qubit: classical and quantum performance
- Characteristics of the Limit Cycle of a Reciprocating Quantum Heat Engine
- Efficiency of harmonic quantum Otto engines at maximal power
- Quantum correlations and thermodynamic performances of two-qubit engines with local and collective baths
- Isolated quantum heat engine
- Maximum-power quantum-mechanical Carnot engine
- Optimal performance of a quantum Otto refrigerator
- Entropy and Temperature of a Quantum Carnot Engine
- Transport in a disordered tight-binding chain with dephasing
- Bosons Outperform Fermions -- The Thermodynamic Advantage of Symmetry
- Quantum heat engine in the relativistic limit: The case of a Dirac particle
- Similarity between quantum mechanics and thermodynamics: Entropy, temperature, and Carnot cycle
- Quantum Otto engine with exchange coupling in the presence of level degeneracy
- Occurrence of discontinuities in the performance of finite-time quantum Otto cycles
- Lipkin-Meshkov-Glick Model in a Quantum Otto Cycle
- Work and Efficiency of Quantum Otto Cycles in Power Law Trapping Potentials
- Magneto-strain-driven quantum engine on a graphene flake
- Coherent Josephson thermodynamic cycles
- Magnetically driven quantum heat engine
- A self-contained quantum harmonic engine
- Thermodynamics of a phase-driven proximity Josephson junction
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- Quantum thermodynamic devices: from theoretical proposals to experimental reality
- Bosons Outperform Fermions -- The Thermodynamic Advantage of Symmetry
- Otto Engine: Classical and Quantum Approach
- Quantum Heat Engines with Singular Interactions
- Magic angle twisted bilayer graphene as a highly efficient quantum Otto engine
- Performance of quantum heat engines under the influence of long-range interactions
- Quantum heat engines with complex working media, complete Otto cycles and heuristics
- Spins-based Quantum Otto Engines and Majorisation
- Quantum Cycle in Relativistic Non-Commutative Space with Generalized Uncertainty Principle correction
- Boosting thermodynamic performance by bending space-time
- Origin of quantum shape effect
- Magnonic Thermal Machines
- Flat-band thermodynamics reveals enhanced performance across Otto, Carnot, and Stirling cycles
- Thermodynamics of Statistical Anyons
- Quantum Photovoltaic Cells Driven by Photon Pulses
- Quantum Otto engines at relativistic energies