1994/01/01 by Michael Knap, Adrian Kantian, Thierry Giamarchi +4
Computer Science · Physics and Astronomy · #Antiferromagnetism #Compiler #Computer science #Correlation function (quantum field theory) #Distributed and Parallel Computing Systems #Embedded system #Field (mathematics) #Interferometry #Ising model #Measure (data warehouse) #Operating system #Opinion Dynamics and Social Influence #Parallel Computing and Optimization Techniques #Physics #Programming language #Quantum many-body systems #Quantum mechanics #Range (aeronautics) #Space (punctuation) #Spin (aerodynamics) #Statistical physics #Theoretical and Computational Physics #cond-mat.quant-gas #cond-mat.str-el #quant-ph
paper · pdf · doi:10.1103/physrevlett.111.147205
published as Phys. Rev. Lett. 111, 147205 (2013) · 5+4 pages, 4+3 figures
openalex publication_date 1994/01/01 · arxiv created 2013/10/07 · arxiv updated 2013/10/09 · openalex created_date 2025/10/10 · openalex updated_date 2026/04/28
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.