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We study asymptotics of three point coefficients (light-light-heavy) and two point correlators in heavy states in unitary, compact $2$D CFTs. We prove an upper and lower bound on such quantities using numerically assisted Tauberian…

High Energy Physics - Theory · Physics 2021-05-19 Diptarka Das , Yuya Kusuki , Sridip Pal

We propose a hybrid quantum-classical algorithm for approximating the ground state of two-dimensional quantum systems using an isometric tensor network ansatz, which maps naturally to quantum circuits. Inspired by the density matrix…

The area law of Bekenstein-Hawking entropy of the black hole suggests that the black hole should have a lower-dimensional holographic description. It has been found recently that a large class of rotating and charged black holes could be…

General Relativity and Quantum Cosmology · Physics 2015-04-29 Bin Chen , Jia-ju Zhang

In this paper, we study a holographic description of weak measurements in conformal field theories (CFTs). Weak measurements can be viewed as a soft projection that interpolates between an identity operator and a projection operator, and…

High Energy Physics - Theory · Physics 2023-12-29 Xinyu Sun , Shao-Kai Jian

The Eigenstate Thermalization Hypothesis (ETH) provides a way to understand how an isolated quantum mechanical system can be approximated by a thermal density matrix. We find a class of operators in (1+1)-$d$ conformal field theories,…

High Energy Physics - Theory · Physics 2017-08-30 Pallab Basu , Diptarka Das , Shouvik Datta , Sridip Pal

The surface/state correspondence suggests that the bulk co-dimensional two surface could be dual to the quantum state in the holographic conformal field theory(CFT). Inspired by the cutoff-AdS/$T\overline{T}$-deformed-CFT correspondence, we…

High Energy Physics - Theory · Physics 2020-05-20 Bin Chen , Lin Chen , Cheng-Yong Zhang

We use the framework of $\textit{fixed-point BCFT tensor networks}$ to present a microscopic CFT derivation of the correspondence between reflected entropy (RE) and entanglement wedge cross section (EW) in AdS$_3$/CFT$_2$, for both…

High Energy Physics - Theory · Physics 2026-02-17 Ning Bao , Jinwei Chu , Yikun Jiang , Jacob March

The AdS/CFT correspondence stipulates a duality between conformal field theories and certain theories of quantum gravity in one higher spatial dimension. However, probing this conjecture on contemporary classical or quantum computers is…

Quantum Physics · Physics 2024-01-25 Rahul Sahay , Mikhail D. Lukin , Jordan Cotler

The aim of the present letter is to find the holographic entanglement entropy (HEE) in 2D holographic superconductors (HSC). Indeed, it is possible to compute the exact form of this entropy due to an advantage of approximate solutions…

High Energy Physics - Theory · Physics 2015-06-19 Davood Momeni , Hossein Gholizade , Muhammad Raza , Ratbay Myrzakulov

We consider two dimensional conformal field theory (CFT) with large central charge c in an excited state obtained by the insertion of an operator \Phi with large dimension \Delta_\Phi ~ O(c) at spatial infinities in the thermal state. We…

High Energy Physics - Theory · Physics 2020-01-08 Justin R. David , Timothy J. Hollowood , Surbhi Khetrapal , S. Prem Kumar

We define two dual tensor network representations of the (3+1)d toric code ground state subspace. These two representations, which are obtained by initially imposing either family of stabilizer constraints, are characterized by different…

Strongly Correlated Electrons · Physics 2021-12-21 Clement Delcamp , Norbert Schuch

The bulk-to-boundary dictionary for 4D celestial holography is given a new entry defining 2D boundary states living on oriented circles on the celestial sphere. The states are constructed using the 2D CFT state-operator correspondence from…

High Energy Physics - Theory · Physics 2021-10-04 Erin Crawley , Noah Miller , Sruthi A. Narayanan , Andrew Strominger

In this paper we discuss geodesic Witten diagrams in generic holographic conformal field theories with boundary or defect. Boundary CFTs allow two different decompositions of two-point functions into conformal blocks: boundary channel and…

High Energy Physics - Theory · Physics 2017-10-25 Andreas Karch , Yoshiki Sato

Recently, a special type of non-conformal line defect, known as thin-shell operator, has played a key role in demonstrating the chaotic nature of the high energy sector in AdS$_3$/CFT$_2$. The chaotic nature was revealed concretely through…

High Energy Physics - Theory · Physics 2025-06-17 Yuefeng Liu , Boyang Yu

Given two two-dimensional conformal field theories, a domain wall -- or defect line -- between them is called invertible if there is another defect with which it fuses to the identity defect. A defect is called topological if it is…

High Energy Physics - Theory · Physics 2013-11-28 Alexei Davydov , Liang Kong , Ingo Runkel

The entanglement wedge reconstruction paradigm in AdS/CFT states that for a bulk qudit within the entanglement wedge of a boundary subregion $\bar{A}$, operators acting on the bulk qudit can be reconstructed as CFT operators on $\bar{A}$.…

High Energy Physics - Theory · Physics 2024-08-16 Onkar Parrikar , Harshit Rajgadia , Vivek Singh , Jonathan Sorce

Tensor networks are often used to accurately represent ground states of quantum spin chains. Two popular choices of such tensor network representations can be seen to implement linear maps that correspond, respectively, to euclidean time…

Strongly Correlated Electrons · Physics 2018-06-01 Ashley Milsted , Guifre Vidal

We study probe corrections to the Eigenstate Thermalization Hypothesis (ETH) in the context of 2D CFTs with large central charge and a sparse spectrum of low dimension operators. In particular, we focus on observables in the form of…

High Energy Physics - Theory · Physics 2018-08-01 Thomas Faulkner , Huajia Wang

We extend the semiclassical black hole microstate construction to include quantum corrections to the microscopic entropy using a doubly holographic model of black holes. Specifically, we consider a double-sided black hole on a JT brane with…

High Energy Physics - Theory · Physics 2026-04-08 Dongming He , Juan Hernandez , Maria Knysh

A sort of planar tensor networks with tensor constraints is investigated as a model for holography. We study the greedy algorithm generated by tensor constraints and propose the notion of critical protection (CP) against the action of…

High Energy Physics - Theory · Physics 2019-02-20 Yi Ling , Yuxuan Liu , Zhuo-Yu Xian , Yikang Xiao