Results 31 to 40 of about 568,421 (287)

Geometric entanglement in the Laughlin wave function

open access: yesNew Journal of Physics, 2017
We study numerically the geometric entanglement in the Laughlin wave function, which is of great importance in condensed matter physics. The Slater determinant having the largest overlap with the Laughlin wave function is constructed by an iterative ...
Jiang-Min Zhang, Yu Liu
doaj   +1 more source

A first-principles investigation of band inversion in topologically nontrivial Na_2AgX (X= As, Sb and Bi) full Heusler compounds

open access: yesCondensed Matter Physics, 2021
Topological nontrivial nature are the latest phases to be discovered in condensed matter physics with insulating bulk band gaps and topologically protected metallic surface states; they are one of the current hot topics because of their unique properties
A. Boughena   +4 more
doaj   +1 more source

Preparing topologically ordered states by Hamiltonian interpolation

open access: yesNew Journal of Physics, 2016
We study the preparation of topologically ordered states by interpolating between an initial Hamiltonian with a unique product ground state and a Hamiltonian with a topologically degenerate ground state space. By simulating the dynamics for small systems,
Xiaotong Ni   +3 more
doaj   +1 more source

Zoo of quantum-topological phases of matter [PDF]

open access: yes, 2017
What are topological phases of matter? First, they are phases of matter at zero temperature. Second, they have a non-zero energy gap for the excitations above the ground state. Third, they are disordered liquids that seem have no feature.
Wen, Xiao-Gang
core   +2 more sources

Z2 Topological Order and Topological Protection of Majorana Fermion Qubits

open access: yesCondensed Matter, 2021
The Kitaev chain model exhibits topological order that manifests as topological degeneracy, Majorana edge modes and Z2 topological invariant of the bulk spectrum.
Rukhsan Ul Haq, Louis H. Kauffman
doaj   +1 more source

Topological lattice-ordered groups [PDF]

open access: yesPacific Journal of Mathematics, 1979
Several types of hulls and completions of lattice ordered groups have been obtained by algebraic methods. In this paper is laid some groundwork for the application of topological and uniform-space concepts to the same end by setting forth those links—topological, algebraic and semantic— between a topological lattice ordered group H and a topologically ...
openaire   +2 more sources

Topological Ordered Rings and Measures

open access: yesResults in Mathematics, 2023
AbstractGiven a ring endowed with a ring order, we provide sufficient conditions for the order topology induced by the ring order to become a ring topology (analogous results for module orders are consequently derived). Finally, the notions of Radon and regular measures are transported to the scope of module-valued measures through module orders ...
Francisco Javier García-Pacheco   +2 more
openaire   +3 more sources

Topological order on the Bloch sphere

open access: yesNew Journal of Physics, 2020
A Bloch sphere is the geometrical representation of an arbitrary two-dimensional Hilbert space. Possible classes of entanglement and separability for the pure and mixed states on the Bloch sphere were suggested by [Boyer et al 2017 PRA 95 032 308].
Rotem Liss, Tal Mor, Román Orús
doaj   +1 more source

Topological Protection and Control of Quantum Markovianity

open access: yesPhotonics, 2020
Under the Born−Markov approximation, a qubit system, such as a two-level atom, is known to undergo a memoryless decay of quantum coherence or excitation when weakly coupled to a featureless environment.
Gian Luca Giorgi   +2 more
doaj   +1 more source

Topological Order and Quantum Criticality

open access: yes, 2010
In this chapter we discuss aspects of the quantum critical behavior that occurs at a quantum phase transition separating a topological phase from a conventionally ordered one.
Castelnovo, Claudio   +2 more
core   +1 more source

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