Zobrazeno 1 - 10
of 6 632
pro vyhledávání: '"Shi, Hai"'
Quantum batteries (QBs) exploit principles of quantum mechanics to accelerate the charging process and aim to achieve optimal energy storage. However, analytical results for investigating these problems remain lacking due to the challenges associated
Externí odkaz:
http://arxiv.org/abs/2411.01175
We investigate the dynamics of fermion localization within the framework of $f(T, B)$ gravity featuring non-minimal couplings. Starting from the Dirac action for a spin-$1/2$ fermion in a five-dimensional spacetime governed by torsional $f(T, B)$ gra
Externí odkaz:
http://arxiv.org/abs/2407.15190
Using a random matrix approach, combined with the ergodicity hypothesis, we derive an analytical expression for the time-averaged quantum Fisher information (QFI) that applies to all quantum chaotic systems governed by Dyson's ensembles. Our approach
Externí odkaz:
http://arxiv.org/abs/2407.11822
Publikováno v:
JCAP 08 (2024) 041
The Event Horizon Telescope (EHT) imaging of the supermassive black holes at the centers of Messier 87 galaxy and the Milky Way galaxy marks a significant step in observing the photon rings and central brightness depression that define the optical ap
Externí odkaz:
http://arxiv.org/abs/2406.07300
This study delves deeply into braneworld scenarios within modified gravity models, investigating their impact on particle localization and the structure of branes. Through a comprehensive blend of numerical analyses and theoretical inquiries, we unra
Externí odkaz:
http://arxiv.org/abs/2405.10169
This study investigates the efficacy of Stochastic Hill Climbing with Random Restarts (SHC-RR) compared to Local Search (LS) strategies within the Quantum Approximate Optimization Algorithm (QAOA) framework across various problem models. Employing un
Externí odkaz:
http://arxiv.org/abs/2405.08941
The pursuit of quantum-enhanced parameter estimations without the need for nonclassical initial states has long been driven by the goal of achieving experimentally accessible quantum metrology. In this paper, employing a coherent averaging mechanism,
Externí odkaz:
http://arxiv.org/abs/2403.05279
Autor:
Moreira, A. R. P., Dong, Shi-Hai
In this research, we delve into the localization patterns of fermionic fields within a braneworld setting, employing a modified gravity model denoted as $f(Q)$. Our investigation revolves around two specific models, $f_1(Q)=Q+kQ^n$ and $f_2(Q)=Q+k_1Q
Externí odkaz:
http://arxiv.org/abs/2401.02201
Publikováno v:
Phys. Rev. A 109, 012204 (2024)
The Tavis-Cummings (TC) model, which serves as a natural physical realization of a quantum battery, comprises $N_b$ atoms as battery cells that collectively interact with a shared photon field, functioning as the charger, initially containing $n_0$ p
Externí odkaz:
http://arxiv.org/abs/2312.13444
Quantum measurements are key to quantum metrology. Constrained by experimental capabilities, collective measurements on a large number of copies of metrological probes can pose significant challenges. Therefore, the locality in quantum measurements m
Externí odkaz:
http://arxiv.org/abs/2310.00285