Zobrazeno 1 - 10
of 4 810
pro vyhledávání: '"You, Wen"'
Deconfined quantum critical points (DQCPs) are proposed as unconventional second-order phase transitions beyond the Landau-Ginzburg-Wilson paradigm. The nature and experimental realizations of DQCPs are crucial issues of importance. We illustrate the
Externí odkaz:
http://arxiv.org/abs/2407.12770
Publikováno v:
Phys. Rev. E 109, 054123 (2024)
In this study, we explore the quantum critical phenomena in generalized Aubry-Andr\'{e} models, with a particular focus on the scaling behavior at various filling states. Our approach involves using quantum fidelity susceptibility to precisely identi
Externí odkaz:
http://arxiv.org/abs/2405.13282
We investigate the topological gauge-theory terms and quantum criticality in spin-1 Kitaev chain with generic single-ion anisotropies (SIAs). The ground-state phase diagram, including Kitaev spin liquid (KSL) phase and gapless dimer phase, is determi
Externí odkaz:
http://arxiv.org/abs/2405.13281
Publikováno v:
Physical Review A 109, 042428 (2024)
Achieving precise preparation of quantum many-body states is crucial for the practical implementation of quantum computation and quantum simulation. However, the inherent challenges posed by unavoidable excitations at critical points during quench pr
Externí odkaz:
http://arxiv.org/abs/2404.05940
In this paper, we investigate the gauge dependence of various physical observables in the quantum Rabi model (QRM) under different potential fields, arising from the Hilbert-space truncation of the atomic degree of freedom. We discover that in both t
Externí odkaz:
http://arxiv.org/abs/2404.03205
Autor:
Li, Liangsheng, Liu, Maoxin, You, Wen-Long, Zhang, Chengjie, Zhang, Shengli, Yin, Hongcheng, Xiao, Zhihe, Zhu, Yong
Publikováno v:
Phys. Rev. A 109, 033704 (2024)
In this study, we explore an approach aimed at enhancing the transmission or reflection coefficients of absorbing materials through the utilization of joint measurements of entangled photon states. On the one hand, through the implementation of photo
Externí odkaz:
http://arxiv.org/abs/2402.16031
Publikováno v:
Physical Review A 108, 032616 (2023)
Quantum control plays an irreplaceable role in practical use of quantum computers. However, some challenges have to be overcome to find more suitable and diverse control parameters. We propose a promising and generalizable average-fidelity-based mach
Externí odkaz:
http://arxiv.org/abs/2309.16470
Autor:
Zhang, Wen-Yi, Wang, Ya-Nan, Liu, Dongchang, Ren, Jie, Li, Jia, Wu, Ning, Oleś, Andrzej M., You, Wen-Long
Publikováno v:
Physical Review B 108, 104411 (2023)
To establish a solid-state-based framework for the coexistence of quantum many-body scars and quantum criticality, we investigate the spin-1 Kitaev chain with uniaxial single-ion anisotropy (SIA). In the subspace with uniform $\mathbb{Z}_2$ gauge fie
Externí odkaz:
http://arxiv.org/abs/2306.00690
Publikováno v:
Phys. Rev. B 107, 134303 (2023)
We show that phase transitions in the quantum $q$-state clock model for $q \leq 4$ can be characterized by an enhanced decay behavior of the Loschmidt echo via a small quench. The quantum criticality of the quantum $q$-state clock model is numericall
Externí odkaz:
http://arxiv.org/abs/2301.08198
Publikováno v:
Phys. Rev. B 106, 144205 (2022)
We have investigated scaling properties near the quantum critical point between the extended phase and the critical phase in the Aubry-Andr\'{e}-Harper model with p-wave pairing, which have rarely been exploited as most investigations focus on the lo
Externí odkaz:
http://arxiv.org/abs/2210.06740