Quantum thermal transistor based on the qubit-qutrit coupling
arXiv:1903.03752 · doi:10.1103/PhysRevE.98.022118
Abstract
A quantum thermal transistor is designed by the strong coupling between one qubit and one qutrit which are in contact with three heat baths with different temperatures. The thermal behavior is analyzed based on the master equation by both the numerical and the approximately analytic methods. It is shown that the thermal transistor, as a three-terminal device, allows a weak modulation heat current (at the modulation terminal) to switch on/off and effectively modulate the heat current between the other two terminals. In particular, the weak modulation heat current can induce the strong heat current between the other two terminals with the multiple-region amplification of heat current. Furthermore, the heat currents are quite robust to the temperature (current) fluctuation at the lower-temperature terminal within certain range of temperature, so it can behave as a heat current stabilizer.
9 pages, 8 figures
References in corpus (14)
- Quantum Thermodynamic Cycles and quantum heat engines
- Thermal Logic Gates: Computation with phonons
- The Physics of Maxwell's demon and information
- Single ion heat engine with maximum efficiency at maximum power
- Thermal memory: a storage of phononic information
- Quantum dot as thermal rectifier
- Minimal universal quantum heat machine
- Internal Consistency of Fault-Tolerant Quantum Error Correction in Light of Rigorous Derivations of the Quantum Markovian Limit
- Autonomous Quantum Refrigerator in a Circuit-QED Architecture Based on a Josephson Junction
- Optimal rectification by strongly coupled spins
- Quantum bath refrigeration towards absolute zero: unattainability principle challenged
- Modulation and amplification of radiative far field heat transfer: Towards a simple radiative thermal transistor
- Thermal Rectification in Graded Materials
- Quantum Thermal Rectification to design thermal diodes and transistors