Work

Classifying Multiparticle Entanglement with Passive State Energies

Year: 2024

Type: article

Abstract: Thermodynamics as a fundamental branch of physics examines the relationships between heat, work, and energy. The maximum energy extraction can be characterized by using the passive states that have no extracted energy under any cyclic unitary process. In this paper, the focus is on the concept of marginal passive state energy and derive polygon inequalities for multi‐qubit entangled pure states. It is shown that the marginal passive state energies collectively form a convex polytope for each class of quantum states that are equivalent under SLOCC. Multipartite passive state energy criteria is introduced to classify multipartite entanglement under SLOCC. The present result provides a thermodynamic method to witness multipartite entanglement.

Source: Advanced Quantum Technologies

DOI: 10.1002/qute.202400118

Authors: Xue Yang, Yan‐Han Yang, Xin‐Zhu Liu, Shao‐Ming Fei, Ming‐Xing Luo

Institutions: Chengdu University of Technology, Southwest Jiaotong University, Max Planck Institute for Mathematics in the Sciences, Capital Normal University

Language: English

Topic: Quantum Information and Cryptography

Subfield: Atomic and Molecular Physics, and Optics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

Funders: National Natural Science Foundation of China, Southwest Jiaotong University, Natural Science Foundation of Beijing Municipality, Natural Science Foundation of Sichuan Province