entanglement entropy
Universal corrections to the entanglement entropy in gapped quantum spin chains: a numerical study
... discussion. Entanglement is a fundamental property of the state of a quantum ...of entanglement is therefore important to further understand the struc- ture of quantum states, a problem of particular inter- ...
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Entanglement Entropy of Highly Degenerate States and Fractal Dimensions
... the entanglement entropy has turned out to reveal funda- mental properties of ground ...the entanglement entropy between the subsystem and the rest diverges as ξ and ℓ increase, the ratio r = ...
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Bi-partite entanglement entropy in integrable models with backscattering
... The entanglement of quantum spin chains has been extensively studied in the literature ...bi-partite entanglement entropy can be re-written in terms of more geometric quantities in this limit, using ...
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On the Entanglement Entropy of Spacetime and Matter Based on the Action in General Relativity
... the entanglement entropy of spacetime, matter and the action in Einstein’s general ...the entanglement entropy of spacetime and matter as the dimensionless action in general relativity by ...
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Universal properties of the entanglement entropy in quantum integrable models
... evaluate entanglement entropy for (1 + 1)-dimensional relativistic ...of entanglement entropy hold for any relativistic QFT we will focus mainly on integrable quantum field ...
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Entanglement entropy of non-unitary conformal field theory
... nilpotent), then there is an additional term proportional to log(log `). These results generalize the well known expressions for unitary models. We provide a general proof, and report on numerical evidence for a ...
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Far-from-equilibrium energy flow and entanglement entropy
... Abstract. The time evolution of the energy transport triggered in a strongly coupled sys- tem by a temperature gradient is holographically related to the evolution of an asymptoti- cally AdS black brane. We study the ...
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Entanglement entropy in Fermi gases and Anderson's orthogonality catastrophe
... ground-state entanglement entropy of a finite subsystem of size L of an infinite system of noninteracting fermions scattered by a potential of finite range ...Neumann entropy, the R´ enyi entropies, ...
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Bi-partite Entanglement Entropy in Massive QFT with a Boundary: the Ising Model
... • checking both the form factor formulae and their analytic continuation for consistency. The first of these problems was easy to solve, as we are dealing with a free theory for which Wick’s theorem applies. Hence, we ...
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The Scaling of Entanglement Entropy for One Spatial XXZ Spin Chain
... The rest of this paper is organised as follows. In Section 2, we recall the physics of spin-1 models with long- range interactions. Section 3 discusses the entanglement entropy and the scaling relationship ...
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Dynamics of entanglement entropy of interacting fermions in a 1D driven harmonic trap
... To add insight into this problem, and inspired by the work of Ref. [4], we examined the emergence of local thermal behavior and showed how it varied over time under the influence of external driving. To this end, we put ...
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Entanglement entropy in strongly correlated systems with confinement/deconfinement phase transition and anisotropy
... Holographic entanglement entropy and its density are calculated for three-dimensional subsystems in this anisotropic ...holographic entanglement entropy are discussed. The entanglement ...
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Entanglement entropy of non-unitary integrable quantum field theory
... In this paper we study the simplest massive 1+1 dimensional integrable quantum field the- ory which can be described as a perturbation of a non-unitary minimal conformal field theory: the Lee-Yang model. We are ...
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Exact Holography of Massive M2-brane Theories and Entanglement Entropy
... ment entropy in dimension higher than two, which is very difficult to obtain from the quantum field ...of entanglement entropy calculation, for d-dimensional conformal field theory from the AdS d+ 1 ...
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Permutation operators, entanglement entropy, and the XXZ spin chain in the limit Δ-> -1
... the entanglement entropies of the infinitely-many ground states of the XXZ model at ∆ = − ...the entanglement entropy and it may be that behaviours observed in [5] result from approaching these ...
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Entanglement entropy in integrable quantum systems
... the entanglement and its features from a field theory point of ...the entanglement entropy of some actual spin systems, using the Forrester-Baxter Restricted-Solid-On-Solid (FB RSOS) ...R´enyi ...
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On the Quantum Thermodynamic Origin of Gravitational Force by Applying Spacetime Entanglement Entropy and Unruh Effect
... We consider the quantum thermodynamic origin of the gravitational force of matter by applying the spacetime entanglement entropy and the Unruh effect originating from vacuum quantum fluctu- ations. By ...
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Time dependence of entanglement entropy on the fuzzy sphere
... the entanglement entropy of a polar cap of a given size at the saturation time (subtracting the t = 0 ...the entanglement entropy added by the quench is ...
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Holographic Entanglement Entropy, SUSY & Calibrations
... Abstract. Holographic calculations of entanglement entropy boil down to identifying minimal surfaces in curved spacetimes. This generically entails solving second-order equations. For higher-dimensional AdS ...
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Entropic manifestations of topological order in three dimensions
... the entanglement entropy of exactly solvable Hamiltonians corresponding to general families of three-dimensional topological ...the entropy caused by non-zero vacuum expectation value of contractible ...
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