KIP publications

year 2020
author(s) Alexander Mil and Torsten V. Zache and Apoorva Hegde and Andy Xia and Rohit P. Bhatt and Markus K. Oberthaler and Philipp Hauke and J├╝rgen Berges and Fred Jendrzejewski
title A scalable realization of local U(1) gauge invariance in cold atomic mixtures
KIP-Nummer HD-KIP 20-02
KIP-Gruppe(n) F17,F20,F21,P1
document type Paper
source Science, Vol. 367, Issue 6482 (2020), pp. 1128-1130
doi 10.1126/science.aaz5312
Abstract (en)

In the fundamental laws of physics, gauge fields mediate the interaction between charged particles. An example is quantum electrodynamics -- the theory of electrons interacting with the electromagnetic field -- based on U(1) gauge symmetry. Solving such gauge theories is in general a hard problem for classical computational techniques. While quantum computers suggest a way forward, it is difficult to build large-scale digital quantum devices required for complex simulations. Here, we propose a fully scalable analog quantum simulator of a U(1) gauge theory in one spatial dimension. To engineer the local gauge symmetry, we employ inter-species spin-changing collisions in an atomic mixture. We demonstrate the experimental realization of the elementary building block as a key step towards a platform for large-scale quantum simulations of continuous gauge theories.

  author   = {Mil, Alexander and Zache, Torsten V. and Hegde, Apoorva and Xia, Andy and Bhatt, Rohit P. and Oberthaler, Markus K. and Hauke, Philipp and Berges, J{\"{u}}rgen and Jendrzejewski, Fred},
  title    = {A scalable realization of local U(1) gauge invariance in cold atomic mixtures},
  journal  = {Science, Vol. 367, Issue 6482},
  year     = {2020},
  volume   = {},
  pages    = {},
  doi      = {10.1126/science.aaz5312},
  url      = {}
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URL Mil2019
Datei pdf
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