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We generalize the constructions for the multipartite reflected entropy in order to construct spacetimes capable of representing multipartite entanglement wedge cross sections of differing party number as Ryu-Takayanagi surfaces on a single…

High Energy Physics - Theory · Physics 2021-07-23 Ning Bao , Aidan Chatwin-Davies , Grant N. Remmen

We investigate the bipartite and multipartite quantum entanglement structure in gravity and the dual holographic field theory based on the generalized Rindler wedge formalism. We deduce a separation theorem, which asserts that for…

High Energy Physics - Theory · Physics 2025-09-04 Xin-Xiang Ju , Bo-Hao Liu , Wen-Bin Pan , Ya-Wen Sun , Yuan-Tai Wang

We characterize the quantum states dual to entanglement wedges in arbitrary spacetimes, in settings where the matter entropy can be neglected compared to the geometric entropy. In AdS/CFT, such states obey special entropy inequalities known…

High Energy Physics - Theory · Physics 2024-04-19 Raphael Bousso , Sami Kaya

We lay down a general scheme to quantify the amount of genuine tripartite entanglement present in the spatial and energy-time degrees of freedom of entangled photon triplets using a resource-based measure known as the tripartite…

We analyze a tripartite entanglement harvesting protocol with three Unruh-DeWitt detectors adiabatically interacting with a quantum scalar field. We consider linear, equilateral triangular, and scalene triangular configurations for the…

We advance a construction for the balanced partial entanglement entropy (BPE) for bipartite mixed states in a class of $(1+1)$-dimensional Galilean conformal field theories dual to Einstein gravity and topologically massive gravity in…

High Energy Physics - Theory · Physics 2022-03-22 Debarshi Basu

The ability to deterministically generate genuine multi-partite entanglement is fundamental for the advancement of quantum information science. We show that the interaction between entangled twin beams of light and an atomic ensemble under…

Quantum Physics · Physics 2021-06-15 Pablo Barberis-Blostein , Alberto M. Marino

In this paper, we discuss the entanglement phase transition of pseudo entropy in CFTs. We focus on the case where the in-state and the out-state are different boundary states related by boundary condition changing operators. We compute the…

High Energy Physics - Theory · Physics 2026-03-13 Hiroki Kanda , Tadashi Takayanagi , Zixia Wei

To analyze the holographic multipartite entanglement structure, we study the upper bound for holographic $n$-partite information $(-1)^n I_n$ that $n-1$ fixed boundary subregions participate together with an arbitrary region $E$. In general…

High Energy Physics - Theory · Physics 2024-11-13 Xin-Xiang Ju , Wen-Bin Pan , Ya-Wen Sun , Yang Zhao

We present a new set of inseparabilty inequalities to detect entanglement in $N$-spin states. These are based on negative partial transposition and involve collective spin-spin correlations of any two partitions of the entire system. They…

Quantum Physics · Physics 2016-08-08 Asoka Biswas

We construct a method for verifying mode entanglement of N-mode W states. The ideal W state contains exactly one excitation symmetrically shared between N modes, but our method takes the existence of higher numbers of excitations into…

Quantum Physics · Physics 2009-08-03 Pavel Lougovski , S. J. van Enk , Kyung Soo Choi , Scott B. Papp , Hui Deng , H. J. Kimble

We consider reflected entropy in a thermofield double state perturbed by a heavy operator insertion. For sufficiently early operator insertions the dual geometry can be described by a localized shock wave geometry. We calculate the…

High Energy Physics - Theory · Physics 2020-08-11 Jan Boruch

We consider (2+1)-dimensional topological quantum states which possess edge states described by a chiral (1+1)-dimensional Conformal Field Theory (CFT), such as e.g. a general quantum Hall state. We demonstrate that for such states the…

Mesoscale and Nanoscale Physics · Physics 2012-06-13 Xiao-Liang Qi , Hosho Katsura , Andreas W. W. Ludwig

We advance a covariant construction for the holographic odd entanglement entropy (OEE) of time dependent bipartite states in CFT$_2$s dual to bulk AdS$_3$ geometries. In this context we obtain the OEE for bipartite states in zero, finite…

High Energy Physics - Theory · Physics 2025-06-23 Saikat Biswas , Ankur Dey , Boudhayan Paul , Gautam Sengupta

We propose a covariant holographic construction based on the extremal entanglement wedge cross section, for the entanglement negativity of bipartite states in $CFT_{1+1}$s dual to non static bulk $AdS_3$ geometries. Utilizing our proposal…

High Energy Physics - Theory · Physics 2024-03-12 Jaydeep Kumar Basak , Himanshu Parihar , Boudhayan Paul , Gautam Sengupta

This paper explores the sensitivity of the human visual system to quantum entangled light. We examine the possibility of human subjects perceiving multipartite entangled state through psychophysical experiments. Our focus begins with a…

Biological Physics · Physics 2024-05-07 Lea Gassab , Ali Pedram , Özgür E. Müstecaplıoğlu

We establish a construction for the entanglement wedge in asymptotically flat bulk geometries for subsystems in dual $(1+1)$-dimensional Galilean conformal field theories in the context of flat space holography. In this connection we…

High Energy Physics - Theory · Physics 2022-04-26 Debarshi Basu , Ashish Chandra , Vinayak Raj , Gautam Sengupta

This paper investigates the holographic network connecting different CFTs, modeled by Gauss-Bonnet gravity with varying couplings across different bulk branches. By applying the holographic Noether's theorem, we prove that the junction…

High Energy Physics - Theory · Physics 2026-05-29 Yu Guo , Rong-Xin Miao

We analyze mixed multi-qubit states composed of a W class state and a product state with all qubit in |0>. We find the optimal pure state decomposition and convex roofs for higher-tangle with bipartite partition between one qubit and the…

Quantum Physics · Physics 2007-07-12 Heng Fan , Yong-Cheng Ou , Vwani Roychowdhury

Detailed analysis of behavior of spin-entangled particle pairs under arbitrary rotations in their Hilbert space has been performed. It shows a rich range of varieties (faces) of entanglement in different bases. Analytic criteria are…

Quantum Physics · Physics 2019-01-03 Moses Fayngold