Journal
PHYSICAL REVIEW LETTERS
Volume 129, Issue 24, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.129.246801
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Funding
- Future and Emerging Technologies (FET) Open research and innovation action [964770]
- National Science Centre, Poland [2017/27/B/ST3/00271, 2019/35/B/ST3/04147]
- Projects ANR Labex GaNEXT [ANR-11-LABX-0014]
- ANR NEWAVE [ANR-21-CE24-0019-01]
- ANRprogramInvestissements d'Avenir [16-IDEX-0001, CAP 20-25]
- Agence Nationale de la Recherche (ANR) [ANR-21-CE24-0019] Funding Source: Agence Nationale de la Recherche (ANR)
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We theoretically demonstrate that Rashba-Dresselhaus spin-orbit coupling acts as a synthetic gauge field in lattices. This allows us to control the tunneling coefficients between sites and implement topological Hamiltonians and spin lattices useful for simulations and optimization. We propose a realistic scheme using liquid crystal-based microcavities to realize these concepts.
We show theoretically that Rashba-Dresselhaus spin-orbit coupling (RDSOC) in lattices acts as a synthetic gauge field. This allows us to control both the phase and the magnitude of tunneling coefficients between sites, which is the key ingredient to implement topological Hamitonians and spin lattices useful for simulation perpectives. We use liquid crystal based microcavities in which RDSOC can be switched on and off as a model platform. We propose a realistic scheme for implementation of a Su-Schrieffer-Heeger chain in which the edge states existence can be tuned, and a Harper-Hofstadter model with a tunable contrasted flux for each (pseudo)spin component. We further show that a transverse-field Ising model and classical XY Hamiltonian with tunable parameters can be implemented, opening up prospects for analog physics, simulations, and optimization.
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