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We point out that the MERA network for the ground state of a 1+1-dimensional conformal field theory has the same structural features as kinematic space---the geometry of CFT intervals. In holographic theories kinematic space becomes…

高能物理 - 理论 · 物理学 2016-08-24 Bartlomiej Czech , Lampros Lamprou , Samuel McCandlish , James Sully

Tensor networks representations of many-body quantum systems can be described in terms of quantum channels. We focus on channels associated with the Multi-scale Entanglement Renormalization Ansatz (MERA) tensor network that has been…

量子物理 · 物理学 2009-11-13 Vittorio Giovannetti , Simone Montangero , Rosario Fazio

The holographic duality relates a field theory to a theory of (quantum) gravity in one dimension more. The extra dimension represents the scale of the RG transformation in the field theory. It has been conjectured that the tensor networks…

强关联电子 · 物理学 2015-10-29 Johannes M. Oberreuter , Stefan Kehrein

Tensor networks provide a useful tool to describe low-dimensional complex many-body systems. Finding efficient algorithms to use these methods for finite-temperature simulations in two dimensions is a continuing challenge. Here, we use the…

强关联电子 · 物理学 2023-05-09 Wilhelm Kadow , Frank Pollmann , Michael Knap

Tensor network states are used to approximate ground states of local Hamiltonians on a lattice in D spatial dimensions. Different types of tensor network states can be seen to generate different geometries. Matrix product states (MPS) in…

量子物理 · 物理学 2012-03-02 G. Evenbly , G. Vidal

We elaborate on a previous proposal by Hartman and Maldacena on a tensor network which accounts for the scaling of the entanglement entropy in a system at a finite temperature. In this construction, the ordinary entanglement renormalization…

高能物理 - 理论 · 物理学 2014-11-04 Javier Molina-Vilaplana , Javier Prior

The Multiscale Entanglement Renormalization Ansatz (MERA) is a tensor network based variational ansatz that is capable of capturing many of the key physical properties of strongly correlated ground states such as criticality and topological…

强关联电子 · 物理学 2017-05-31 Victor Chua , Vasilios Passias , Apoorv Tiwari , Shinsei Ryu

We investigate a recent conjecture connecting the AdS/CFT correspondence and entanglement renormalization tensor network states (MERA). The proposal interprets the tensor connectivity of the MERA states associated to quantum many body…

高能物理 - 理论 · 物理学 2013-06-27 Javier Molina-Vilaplana

The multi-scale entanglement renormalization ansatz (MERA) is a tensor network that can efficiently parameterize critical ground states on a 1D lattice, and also suggestively implement some aspects of the holographic correspondence of…

强关联电子 · 物理学 2020-09-22 Nathan A. McMahon , Sukhbinder Singh , Gavin K. Brennen

In recent years, tensor network states have emerged as a very useful conceptual and simulation framework to study quantum many-body systems at low energies. In this paper, we describe a particular way in which any given tensor network can…

强关联电子 · 物理学 2018-01-31 Sukhwinder Singh

The multi-scale entanglement renormalization ansatz (MERA) is a tensor network representation for ground states of critical quantum spin chains, with a network that extends in an additional dimension corresponding to scale. Over the years…

高能物理 - 理论 · 物理学 2018-12-04 Ashley Milsted , Guifre Vidal

This paper demonstrates a method for tensorizing neural networks based upon an efficient way of approximating scale invariant quantum states, the Multi-scale Entanglement Renormalization Ansatz (MERA). We employ MERA as a replacement for…

神经与进化计算 · 计算机科学 2018-12-14 Andrew Hallam , Edward Grant , Vid Stojevic , Simone Severini , Andrew G. Green

We use TensorNetwork [C. Roberts et al., arXiv: 1905.01330], a recently developed API for performing tensor network contractions using accelerated backends such as TensorFlow, to implement an optimization algorithm for the Multi-scale…

计算物理 · 物理学 2019-07-01 Martin Ganahl , Ashley Milsted , Stefan Leichenauer , Jack Hidary , Guifre Vidal

We initiate the study of how tensor networks reproduce properties of static holographic space-times, which are not locally pure anti-de Sitter. We consider geometries that are holographically dual to ground states of defect, interface and…

高能物理 - 理论 · 物理学 2017-04-25 Bartlomiej Czech , Phuc H. Nguyen , Sivaramakrishnan Swaminathan

Hyperinvariant tensor networks (hyMERA) were introduced as a way to combine the successes of perfect tensor networks (HaPPY) and the multiscale entanglement renormalization ansatz (MERA) in simulations of the AdS/CFT correspondence.…

量子物理 · 物理学 2023-11-14 Matthew Steinberg , Javier Prior

We show how to build a multi-scale entanglement renormalization ansatz (MERA) representation of the ground state of a many-body Hamiltonian $H$ by applying the recently proposed \textit{tensor network renormalization} (TNR) [G. Evenbly and…

强关联电子 · 物理学 2015-11-18 Glen Evenbly , Guifre Vidal

Tensor networks are adopted to calculate the responses for one-dimensional quantum spin systems that are initially in thermal equilibrium. The Ising chain in mixed transverse and longitudinal fields is used as the benchmarking system. The…

统计力学 · 物理学 2025-01-06 Jiayin Gu

An algorithm for optimizing the MERA tensor network in an infinite system is presented. Using this technique we compute the critical exponents of Ising and XXZ model.

量子物理 · 物理学 2013-05-29 S. Montangero , M. Rizzi , V. Giovannetti , R. Fazio

We propose a new class of tensor network state as a model for the AdS/CFT correspondence and holography. This class is demonstrated to retain key features of the multi-scale entanglement renormalization ansatz (MERA), in that they describe…

量子物理 · 物理学 2017-10-18 Glen Evenbly

In (d+1) dimensional Multiscale Entanglement Renormalization Ansatz (MERA) networks, tensors are connected so as to reproduce the discrete, (d + 2) holographic geometry of Anti de Sitter space (AdSd+2) with the original system lying at the…

量子物理 · 物理学 2011-10-07 Javier Molina-Vilaplana , Pasquale Sodano
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