Scientific article
OA Policy
English

Probing Real-Space and Time-Resolved Correlation Functions with Many-Body Ramsey Interferometry

Published inPhysical review letters, vol. 111, no. 14, 147205
Publication date2013
Abstract

We propose to use Ramsey interferometry and single-site addressability, available in synthetic matter such as cold atoms or trapped ions, to measure real-space and time-resolved spin correlation functions. These correlation functions directly probe the excitations of the system, which makes it possible to characterize the underlying many-body states. Moreover, they contain valuable information about phase transitions where they exhibit scale invariance. We also discuss experimental imperfections and show that a spin-echo protocol can be used to cancel slow fluctuations in the magnetic field. We explicitly consider examples of the two-dimensional, antiferromagnetic Heisenberg model and the one-dimensional, long- range transverse field Ising model to illustrate the technique.

Research groups
Funding
  • Swiss National Science Foundation - Division II
Citation (ISO format)
KNAP, Michael et al. Probing Real-Space and Time-Resolved Correlation Functions with Many-Body Ramsey Interferometry. In: Physical review letters, 2013, vol. 111, n° 14, p. 147205. doi: 10.1103/PhysRevLett.111.147205
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Article (Published version)
accessLevelPublic
Identifiers
Journal ISSN0031-9007
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Technical informations

Creation04/07/2014 2:30:00 PM
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