Probing quantum floating phases in Rydberg atom arrays
- URL: http://arxiv.org/abs/2401.08087v1
- Date: Tue, 16 Jan 2024 03:26:36 GMT
- Title: Probing quantum floating phases in Rydberg atom arrays
- Authors: Jin Zhang, Sergio H. Cant\'u, Fangli Liu, Alexei Bylinskii, Boris
Braverman, Florian Huber, Jesse Amato-Grill, Alexander Lukin, Nathan Gemelke,
Alexander Keesling, Sheng-Tao Wang, Y. Meurice, and S.-W. Tsai
- Abstract summary: We experimentally observe the emergence of the quantum floating phase in 92 neutral-atom qubits.
The site-resolved measurement reveals the formation of domain walls within the commensurate ordered phase.
As the experimental system sizes increase, we show that the wave vectors approach a continuum of values incommensurate with the lattice.
- Score: 61.242961328078245
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: The floating phase, a critical incommensurate phase, has been theoretically
predicted as a potential intermediate phase between crystalline ordered and
disordered phases. In this study, we investigate the different quantum phases
that arise in ladder arrays comprising up to 92 neutral-atom qubits and
experimentally observe the emergence of the quantum floating phase. We analyze
the site-resolved Rydberg state densities and the distribution of state
occurrences. The site-resolved measurement reveals the formation of domain
walls within the commensurate ordered phase, which subsequently proliferate and
give rise to the floating phase with incommensurate quasi-long-range order. By
analyzing the Fourier spectra of the Rydberg density-density correlations, we
observe clear signatures of the incommensurate wave order of the floating
phase. Furthermore, as the experimental system sizes increase, we show that the
wave vectors approach a continuum of values incommensurate with the lattice.
Our work motivates future studies to further explore the nature of
commensurate-incommensurate phase transitions and their non-equilibrium
physics.
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