Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Phase transitions, entanglement and quantum noise interferometry in cold atoms



F. Mintert, A.M. Rey, Indubala I. Satija, Charles W. Clark


We show that entanglement monotones can characterize the pronounced enhancement of entanglement at a quantum phase transition if they are sensitive to long-range high order correlations. These monotones are found to develop a sharp peak at the critical point and to exhibit universal scaling. We demonstrate that similar features are shared by noise correlations and verify that these experimentally accessible quantities indeed encode entanglement information and probe separability.
Physical Review Letters


entanglement, Jordan-Wigner transformation, magnetism, quantum phase transition, Toeplitz determinant, XY model


Mintert, F. , Rey, A. , Satija, I. and Clark, C. (2009), Phase transitions, entanglement and quantum noise interferometry in cold atoms, Physical Review Letters, [online], (Accessed April 24, 2024)
Created March 4, 2009, Updated October 12, 2021