Zobrazeno 1 - 10
of 208
pro vyhledávání: '"Liu, Yu-qiang"'
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
We study the polarization modes of gravitational waves in general Einstein-vector theory with an arbitrary constant background vector field under a Minkowski background. We compare these polarization modes with those of other vector-tensor theories a
Externí odkaz:
http://arxiv.org/abs/2405.20577
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:
Phys.Rev.D 109 (2024) 4, 044013
In this paper, we establish a unified parameterized framework for analyzing the polarization modes of gravitational waves in the general metric theory (gravity is only described by the metric) and the general scalar-tensor theory (gravity is describe
Externí odkaz:
http://arxiv.org/abs/2310.11336
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.D 109 (2024) 2, 024014
In this paper, we study polarization modes of gravitational waves in generalized Proca theory in the homogeneous and isotropic Minkowski background. The results show that the polarizations of gravitational waves depend on the parameter space of this
Externí odkaz:
http://arxiv.org/abs/2305.12516