Zobrazeno 1 - 10
of 5 523
pro vyhledávání: '"Hai Qing An"'
Although the superradiant phase transition (SRPT) is prohibited in the paradigmatic quantum Rabi model due to the no-go theorem caused by the $\mathbf{A}$-square term, we demonstrate two distinct types of SRPTs emerging from the normal phase in the a
Externí odkaz:
http://arxiv.org/abs/2412.08305
We extend the ``complexity=volume" (CV) conjecture in the wormhole to the quantum states in the framework of information geometry. In particular, we conjecture that Krylov complexity equals the volume of the Fubini-Study metric in the information geo
Externí odkaz:
http://arxiv.org/abs/2412.08925
Autor:
Shi, Han-Qing, Zhang, Hai-Qing
We develop a general theory for computing the Renyi entropy with general multiple disjoint intervals from the swapping operations. Our theory is proposed based on the fact that we have observed the resemblance between the replica trick in quantum fie
Externí odkaz:
http://arxiv.org/abs/2411.18353
Autor:
He, Peng-Zhang, Zhang, Hai-Qing
We investigate the Krylov complexity in the context of Schr\"odinger field theory in the grand canonic ensemble for the bosonic and fermionic cases. Specifically, we find that the Lanczos coefficients $\{a_{n}\}$ and $\{b_{n}\}$ satisfy the linear re
Externí odkaz:
http://arxiv.org/abs/2411.16302
We pursue the calculation of the model-independent component of the axion-photon-photon coupling in the $U(3)$ chiral perturbation theory up to next-to-leading order, with the emphasis on the isospin breaking effect. The mixing of the $\pi^0$-$\eta$-
Externí odkaz:
http://arxiv.org/abs/2411.06737
Autor:
Zhou, Yu, Zhang, Hai-Qing
We compute the effective action for a massive scalar field in (A)dS spacetime using the Euclidean heat kernel method. We highlight that in even-dimensional dS spacetimes, the effective action exhibits a non-trivial imaginary part, reminiscent of the
Externí odkaz:
http://arxiv.org/abs/2410.20949
We present a calculation by including the relativistic and off-shell contributions to the interaction potentials between two spin-1/2 fermions mediated by the exchange of light spin-0 particles, in both momentum and coordinate spaces. Our calculation
Externí odkaz:
http://arxiv.org/abs/2410.09730
Publikováno v:
Physical Review A 110, 022427(2024)
A set of multipartite orthogonal states is genuinely nonlocal if it is locally indistinguishable in every bipartition of the subsystems. If the set is locally reducible, we say it has genuine nonlocality of type \uppercase\expandafter{\romannumeral 1
Externí odkaz:
http://arxiv.org/abs/2408.11566
Autor:
He, Peng-Zhang, Zhang, Hai-Qing
Publikováno v:
JHEP11(2024)014
Krylov complexity characterizes the operator growth in the quantum many-body systems or quantum field theories. The existing literatures have studied the Krylov complexity in the low temperature limit in the quantum field theories. In this paper, we
Externí odkaz:
http://arxiv.org/abs/2407.02756
Using holography, we study the universal scaling laws governing the coarsening dynamics of strongly coupled domain walls. Specifically, we studied the universal dependence of the length of the domain wall interfaces on the quench rate. The relation s
Externí odkaz:
http://arxiv.org/abs/2406.05167