Uniform Bound of the Entanglement for the Ground State of the Quantum Ising Model with Large Transverse Magnetic Field
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DOI: 10.1007/s10955-020-02501-7
Abstract: We consider the ground state of the quantum Ising model with transverse field h in one dimension in a finite volume $$\begin{aligned} \Lambda {_{m}:=\{-m,-m+1,\ldots ,m+L\}.} \end{aligned}$$ Λ m : = { - m , -… read more here.
Keywords: quantum ising; state quantum; uniform bound; ising model ... See more keywords
Lower bound on entanglement in subspaces defined by Young diagrams
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DOI: 10.1063/1.5050904
Abstract: Eigenvalues of 1-particle reduced density matrices of $N$-fermion states are upper bounded by $1/N$, resulting in a lower bound on entanglement entropy. We generalize these bounds to all other subspaces defined by Young diagrams in… read more here.
Keywords: bound entanglement; defined young; lower bound; subspaces defined ... See more keywords
Verifying bound entanglement of dephased Werner states
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DOI: 10.1103/physreva.96.042321
Abstract: The verification of quantum entanglement under the influence of realistic noise and decoherence is crucial for the development of quantum technologies. Unfortunately, a full entanglement characterization is generally not possible with most entanglement criteria such… read more here.
Keywords: werner states; verifying bound; entanglement dephased; entanglement ... See more keywords