Continuous Symmetry Breaking in a Trapped-Ion Spin Chain
- URL: http://arxiv.org/abs/2211.01275v1
- Date: Wed, 2 Nov 2022 16:59:18 GMT
- Title: Continuous Symmetry Breaking in a Trapped-Ion Spin Chain
- Authors: Lei Feng, Or Katz, Casey Haack, Mohammad Maghrebi, Alexey V. Gorshkov,
Zhexuan Gong, Marko Cetina, Christopher Monroe
- Abstract summary: One-dimensional systems exhibiting a continuous symmetry can host quantum phases of matter with true long-range order.
We use a one-dimensional trapped-ion quantum simulator to prepare states with long-range spin order that extends over the system size of up to $23$ spins.
This work opens an avenue to study new quantum phases and out-of-equilibrium dynamics in low-dimensional systems.
- Score: 3.861651032981608
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: One-dimensional systems exhibiting a continuous symmetry can host quantum
phases of matter with true long-range order only in the presence of
sufficiently long-range interactions. In most physical systems, however, the
interactions are short-ranged, hindering the emergence of such phases in one
dimension. Here we use a one-dimensional trapped-ion quantum simulator to
prepare states with long-range spin order that extends over the system size of
up to $23$ spins and is characteristic of the continuous symmetry-breaking
phase of matter. Our preparation relies on simultaneous control over an array
of tightly focused individual-addressing laser beams, generating long-range
spin-spin interactions. We also observe a disordered phase with frustrated
correlations. We further study the phases at different ranges of interaction
and the out-of-equilibrium response to symmetry-breaking perturbations. This
work opens an avenue to study new quantum phases and out-of-equilibrium
dynamics in low-dimensional systems.
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