Zobrazeno 1 - 10
of 37
pro vyhledávání: '"Fuji, Yohei"'
Publikováno v:
Physical Review Research 6, 043049 (2024)
We study multifractal properties in time evolution of a single particle subject to repeated measurements. For quantum systems, we consider circuit models consisting of local unitary gates and local projective measurements. For classical systems, we c
Externí odkaz:
http://arxiv.org/abs/2406.02386
Autor:
Kamal, Helia, Kemp, Jack, He, Yin-Chen, Fuji, Yohei, Aidelsburger, Monika, Zoller, Peter, Yao, Norman Y.
Publikováno v:
Physical Review Letters, 133(16), 163403 (2024)
Flux attachment provides a powerful conceptual framework for understanding certain forms of topological order, including most notably the fractional quantum Hall effect. Despite its ubiquitous use as a theoretical tool, directly realizing flux attach
Externí odkaz:
http://arxiv.org/abs/2401.08754
Publikováno v:
J. Math. Phys. 64, 051901 (2023)
Topologically ordered phases in $2+1$ dimensions are generally characterized by three mutually-related features: fractionalized (anyonic) excitations, topological entanglement entropy, and robust ground state degeneracy that does not require symmetry
Externí odkaz:
http://arxiv.org/abs/2211.00299
Autor:
Oshima, Hisanori, Fuji, Yohei
Publikováno v:
Phys. Rev. B 107, 014308 (2023)
We study a (1+1)-dimensional quantum circuit consisting of Haar-random unitary gates and projective measurements that conserve a total $U(1)$ charge and thus have $U(1)$ symmetry. In addition to a measurement-induced entanglement transition between a
Externí odkaz:
http://arxiv.org/abs/2210.16009
Autor:
Fuji, Yohei, Furusaki, Akira
Publikováno v:
Phys. Rev. Research 5, 043108 (2023)
Three-dimensional (3D) gapped topological phases with fractional excitations are divided into two subclasses: one has topological order with point-like and loop-like excitations fully mobile in the 3D space, and the other has fracton order with point
Externí odkaz:
http://arxiv.org/abs/2112.07926
Publikováno v:
Phys. Rev. B 104, 205115 (2021)
Under a perfect periodic potential, the electric current density induced by a constant electric field may exhibit nontrivial oscillations, so-called Bloch oscillations, with an amplitude that remains nonzero in the large system size limit. Such oscil
Externí odkaz:
http://arxiv.org/abs/2106.10695
Autor:
Fuji, Yohei, Ashida, Yuto
Publikováno v:
Phys. Rev. B 102, 054302 (2020)
We investigate entanglement phase transitions from volume-law to area-law entanglement in a quantum many-body state under continuous position measurement on the basis of the quantum trajectory approach. We find the signatures of the transitions as pe
Externí odkaz:
http://arxiv.org/abs/2004.11957
Autor:
Fuji, Yohei
Publikováno v:
Phys. Rev. B 100, 235115 (2019)
We propose a coupled-layer construction of a class of fracton topological orders in three spatial dimensions, which is characterized by spatially anisotropic mobility of quasiparticle excitations constrained in subdimensional manifolds. The simplest
Externí odkaz:
http://arxiv.org/abs/1908.02257
Autor:
Fuji, Yohei, Furusaki, Akira
Publikováno v:
Phys. Rev. B 99, 241107 (2019)
We propose a systematic approach to constructing microscopic models with fractional excitations in three-dimensional (3D) space. Building blocks are quantum wires described by the (1+1)-dimensional conformal field theory (CFT) associated with a curre
Externí odkaz:
http://arxiv.org/abs/1901.05918
Autor:
Fuji, Yohei, Furusaki, Akira
Publikováno v:
Phys. Rev. B 99, 035130 (2019)
The coupled-wire construction provides a useful way to obtain microscopic Hamiltonians for various two-dimensional topological phases, among which fractional quantum Hall states are paradigmatic examples. Using the recently introduced flux attachment
Externí odkaz:
http://arxiv.org/abs/1808.07648