Results 11 to 20 of about 186,804 (243)

Bell’s inequality and entanglement in qubits

open access: yesJournal of High Energy Physics, 2017
We propose an alternative evaluation of quantum entanglement by measuring the maximum violation of the Bell’s inequality without information of the reduced density matrix of a system. This proposal is demonstrated by bridging the maximum violation of the
Po-Yao Chang, Su-Kuan Chu, Chen-Te Ma
doaj   +1 more source

Symmetry Protected Topological phases of Quantum Matter [PDF]

open access: yes, 2014
We describe recent progress in our understanding of the interplay between interactions, symmetry, and topology in states of quantum matter. We focus on a minimal generalization of the celebrated topological band insulators to interacting many particle ...
Senthil, T.
core   +2 more sources

Entanglement entropy, quantum fluctuations, and thermal entropy in topological phases

open access: yesJournal of High Energy Physics, 2019
Entanglement entropy in topologically ordered matter phases has been computed extensively using various methods. In this paper, we study the entanglement entropy of topological phases in two-spaces from a new perspective — the perspective of ...
Yuting Hu, Yidun Wan
doaj   +1 more source

Extended dynamical symmetries of Landau levels in higher dimensions

open access: yesJournal of High Energy Physics, 2020
Continuum models for time-reversal (TR) invariant topological insulators (Tis) in d ≥ 3 dimensions are provided by harmonic oscillators coupled to certain SO(d) gauge fields.
S. Kürkçüoğlu   +2 more
doaj   +1 more source

Fermion condensation and gapped domain walls in topological orders

open access: yesJournal of High Energy Physics, 2017
We study fermion condensation in bosonic topological orders in two spatial dimensions. Fermion condensation may be realized as gapped domain walls between bosonic and fermionic topological orders, which may be thought of as real-space phase transitions ...
Yidun Wan, Chenjie Wang
doaj   +1 more source

Towards the manipulation of topological states of matter: A perspective from electron transport [PDF]

open access: yes, 2018
The introduction of topological invariants, ranging from insulators to metals, has provided new insights into the traditional classification of electronic states in condensed matter physics. A sudden change in the topological invariant at the boundary of
Chen, Yong P.   +4 more
core   +2 more sources

Anyonic exclusions statistics on surfaces with gapped boundaries

open access: yesJournal of High Energy Physics, 2019
An anyonic exclusion statistics, which generalizes the Bose-Einstein and Fermi-Dirac statistics of bosons and fermions, was proposed by Haldane [1].
Yingcheng Li   +3 more
doaj   +1 more source

Fusion rules and shrinking rules of topological orders in five dimensions

open access: yesJournal of High Energy Physics, 2023
As a series of work about 5D (spacetime) topological orders, here we employ the path-integral formalism of 5D topological quantum field theory (TQFT) established in Zhang and Ye, JHEP 04 (2022) 138 to explore non-Abelian fusion rules, hierarchical ...
Yizhou Huang, Zhi-Feng Zhang, Peng Ye
doaj   +1 more source

Bandgap-assisted quantum control of topological edge states in a cavity

open access: yesPhysical Review Research, 2020
Quantum matter with exotic topological order has potential applications in quantum computation. However, in present experiments, the manipulations on topological states are still challenging.
Wei Nie, Yu-xi Liu
doaj   +1 more source

Topological orders, braiding statistics, and mixture of two types of twisted BF theories in five dimensions

open access: yesJournal of High Energy Physics, 2022
Topological orders are a prominent paradigm for describing quantum many-body systems without symmetry-breaking orders. We present a topological quantum field theoretical (TQFT) study on topological orders in five-dimensional spacetime (5D) in which ...
Zhi-Feng Zhang, Peng Ye
doaj   +1 more source

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