Zobrazeno 1 - 10
of 2 535
pro vyhledávání: '"So Oshikawa"'
We investigate the nonequilibrium dynamics of the magnetization in an Ising chain subjected to a slowly rotating transverse field. The magnetization oscillations are found to be explained by the contributions from different particle excitations in th
Externí odkaz:
http://arxiv.org/abs/2408.13725
Autor:
You, Yizhi, Oshikawa, Masaki
We introduce a class of intrinsic symmetry-protected topological mixed-state(mSPT) in open quantum systems that feature modulated symmetries, such as dipole and subsystem symmetries. Intriguingly, these mSPT phases cannot be realized as the ground st
Externí odkaz:
http://arxiv.org/abs/2407.08786
The transfer of quantum information between many-qubit states is a subject of fundamental importance in quantum science and technology. We consider entanglement swapping in critical quantum spin chains, where the entanglement between the two chains i
Externí odkaz:
http://arxiv.org/abs/2406.12377
Publikováno v:
SciPost Phys. 17, 099 (2024)
We present the finite-size scaling theory of one-dimensional quantum critical systems in the presence of boundaries. While the finite-size spectrum in the conformal limit, namely of a conformal field theory with conformally invariant boundary conditi
Externí odkaz:
http://arxiv.org/abs/2405.06891
We explore the landscape of the decoherence effect in mixed-state ensembles from a purification perspective. We analyze the spontaneous strong-to-weak symmetry breaking (SSSB) in mixed states triggered by local quantum channels by mapping this decohe
Externí odkaz:
http://arxiv.org/abs/2405.02402
Publikováno v:
Phys. Rev. B 110, 094404 (2024)
Entanglement in quantum many-body systems can exhibit universal phenomena governed by long-distance properties. We study universality and phase transitions of the entanglement inherent to open many-body systems, namely, the entanglement between a sys
Externí odkaz:
http://arxiv.org/abs/2311.16343
Publikováno v:
Phys. Rev. Lett. 133, 136705 (2024)
We study quantum many-body systems in the presence of an exotic antiunitary translation or inversion symmetry involving time reversal. Based on a symmetry-twisting method and spectrum robustness, we propose that a half-integer spin chain that respect
Externí odkaz:
http://arxiv.org/abs/2307.09843
The Kennedy-Tasaki (KT) transformation was used to construct the gapped symmetry protected topological (SPT) phase from the symmetry breaking phase with open boundary condition, and was generalized in our proceeding work [L. Li et al. arXiv:2301.0789
Externí odkaz:
http://arxiv.org/abs/2307.04788
Autor:
Ueda, Atsushi, Oshikawa, Masaki
We propose a general procedure for extracting the running coupling constants of the underlying field theory of a given classical statistical model on a two-dimensional lattice, combining tensor network renormalization (TNR) and the finite-size scalin
Externí odkaz:
http://arxiv.org/abs/2302.06632
Autor:
Tada, Yasuhiro, Oshikawa, Masaki
We propose new dipole and quadrupole indices for interacting insulators with point group symmetries. The proposed indices are defined in terms of many-body quantum multipole operators combined with the generator of the point group symmetry. Unlike th
Externí odkaz:
http://arxiv.org/abs/2302.00800