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Hidden frustrated interactions and quantum annealing in trapped-ion spin-phonon chains

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posted on 2023-06-08, 23:57 authored by Pedro Nevado Serrano, Diego Porras
We show that a trapped-ion chain interacting with an optical spin-dependent force shows strong frustration effects due to the interplay between long range interactions and the dressing by optical phases. We consider a strong spin-phonon coupling regime and predict a quantum phase diagram with different competing magnetic and structural orders. In a highly frustrated region, the system shows enhanced quantum fluctuations and entanglement, which are characteristic of spin-liquid phases. We propose and describe within a mean-field approach a quantum annealing process to induce a quasi-adiabatic evolution towards the ground state.

Funding

New Frontiers in Quantum Simulation: NewFQS; G1309; EUROPEAN UNION; PCIG14-GA-2013-630955

Marie Curie CIG; 630955

History

Publication status

  • Published

File Version

  • Accepted version

Journal

Physical Review A

ISSN

1050-2947

Publisher

American Physical Society

Volume

93

Page range

013625-1-013625-12

Department affiliated with

  • Physics and Astronomy Publications

Full text available

  • Yes

Peer reviewed?

  • Yes

Legacy Posted Date

2016-01-12

First Open Access (FOA) Date

2016-09-23

First Compliant Deposit (FCD) Date

2016-01-12

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