Zobrazeno 1 - 10
of 30
pro vyhledávání: '"Yang, Yi-jia"'
Quantum noise and thermal noise are the two primary sources of noise that limit the sensitivity of weak magnetic field sensing. Although quantum noise has been widely addressed, effectively reducing thermal noise remains challenging in detecting weak
Externí odkaz:
http://arxiv.org/abs/2408.01905
Publikováno v:
Ann. Phys. (Berlin) 2024, 2400018
In the realm weak force sensing, an important issue is to suppress fundamental noise (quantum noise and thermal noise), as they limit the accuracy of force measurement. In this paper, we investigate a weak force sensing scheme that combines a degener
Externí odkaz:
http://arxiv.org/abs/2408.01757
Publikováno v:
Phys. Rev. A 109, 023709 (2024)
The crucial limitation of improving the sensitivity of the detection of weak magnetic fields is the unavoidable measurement noise. In this paper, we propose a scheme to achieve precise sensing robust against additional noise by employing a dual-frequ
Externí odkaz:
http://arxiv.org/abs/2401.13879
Publikováno v:
Phys. Rev. E 109, 014137, 2024
The mechanical strain can control the frequency of two-level atoms in amorphous material. In this work, we would like to employ two coupled two-level atoms to manipulate the magnitude and direction of heat transport by controlling mechanical strain t
Externí odkaz:
http://arxiv.org/abs/2401.04417
Publikováno v:
Physical Review E, vol. 109, no. 2, January 2024
A quantum thermal device based on three nearest-neighbor coupled spin-1/2 systems controlled by the magnetic field is proposed. We systematically study the steady-state thermal behaviors of the system. When the two terminals of our system are in cont
Externí odkaz:
http://arxiv.org/abs/2401.04315
Publikováno v:
Appl. Phys. Lett. 123, 144002 (2023)
Quantum superconducting circuit with flexible coupler has been a powerful platform for designing quantum thermal machines. In this letter, we employ the tunable coupling of two superconducting resonators to realize a heat valve by modulating magnetic
Externí odkaz:
http://arxiv.org/abs/2309.11467
Publikováno v:
Physical Review E, vol, 107, Page, 064125, June 2023
A quantum thermal diode is designed based on three pairwise coupled qubits, two connected to a common reservoir and the other to an independent reservoir. It is found that the internal couplings between qubits can enhance heat currents. If the two id
Externí odkaz:
http://arxiv.org/abs/2305.19660
Publikováno v:
Phys. Rev. E 107, 044121 (2023)
Precisely controlling heat transfer in a quantum mechanical system is particularly significant for designing quantum thermodynamical devices. With the technology of experiment advances, circuit quantum electrodynamics (circuit QED) has become a promi
Externí odkaz:
http://arxiv.org/abs/2304.01442
Publikováno v:
2022 J. Phys. A: Math. Theor. 55 395303
This paper systematically studied heat transfer through two transversely coupled qubits in contact with two types of heat reservoirs. One is the independent heat reservoir which essentially interacts with only a single qubit, the other is the common
Externí odkaz:
http://arxiv.org/abs/2203.14050
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