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Probing topological spin liquids on a programmable quantum simulator

Journal Article · · Science
 [1];  [1];  [2];  [1];  [1];  [1];  [1];  [3];  [1];  [1];  [2];  [4];  [1];  [1];  [5];  [1]
  1. Department of Physics, Harvard University, Cambridge, MA 02138, USA.
  2. Department of Physics, Harvard University, Cambridge, MA 02138, USA.; QuEra Computing, Boston, MA 02135, USA.
  3. Institute for Theoretical Physics, University of Innsbruck, Innsbruck A-6020, Austria.; Institute for Quantum Optics and Quantum Information, Austrian Academy of Sciences, Innsbruck A-6020, Austria.
  4. Department of Physics, Harvard University, Cambridge, MA 02138, USA.; School of Natural Sciences, Institute for Advanced Study, Princeton, NJ 08540, USA.
  5. Department of Physics and Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge, MA 02139, USA.
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Synthesizing topological order Topologically ordered matter exhibits long-range quantum entanglement. However, measuring this entanglement in real materials is extremely tricky. Now, two groups take a different approach and turn to synthetic systems to engineer the topological order of the so-called toric code type (see the Perspective by Bartlett). Satzingeret al. used a quantum processor to study the ground state and excitations of the toric code. Semeghiniet al. detected signatures of a toric code–type quantum spin liquid in a two-dimensional array of Rydberg atoms held in optical tweezers. —JS

Research Organization:
Harvard Univ., Cambridge, MA (United States)
Sponsoring Organization:
USDOE Office of Science (SC)
DOE Contract Number:
SC0019030; SC0021013
OSTI ID:
1980730
Journal Information:
Science, Vol. 374, Issue 6572; ISSN 0036-8075
Publisher:
AAAS
Country of Publication:
United States
Language:
English

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