Site-resolved imaging of a bosonic Mott insulator using ytterbium atoms

Miranda, Martin; Inoue, Ryotaro; Tambo, Naoki; Kozuma, Mikio

doi:10.1103/physreva.96.043626

Cited by 28 publications

(20 citation statements)

References 28 publications

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“…With a single atom decay rate of γ=290 kHz, a chain of strontium atoms would require quite fast switching times τ for the magnetic field direction of the order of microseconds or tens of microsenconds (longer switching times are possible for a larger system size and ratio a/λ, as the excitation takes longer to leave the bulk). The trapping of these alkaline earth metal atoms is currently realized experimentally both in optical lattices [52,53] and tweezer arrays [54]. Even smaller ratios a/λ can be achieved by using Rydberg states, where the transition wavelengths are much longer than in low-lying states.…”

Section: Discussionmentioning

confidence: 99%

Subradiance-protected excitation transport

2019

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We explore excitation transport within a one-dimensional chain of atoms where the atomic transition dipoles are coupled to the free radiation field. When the atoms are separated by distances smaller or comparable to the wavelength of the transition, the exchange of virtual photons leads to the transport of the excitation through the lattice. Even though this is a strongly dissipative system, we find that the transport is subradiant, that is, the excitation lifetime is orders of magnitude longer than the one of an individual atom. In particular, we show that a subspace of the spectrum is formed by subradiant states with a linear dispersion relation, which allows for the dispersionless transport of wave packets over long distances with virtually zero decay rate. Moreover, the group velocity and direction of the transport can be controlled via an external uniform magnetic field while preserving its subradiant character. The simplicity and versatility of this system, together with the robustness of subradiance against disorder, makes it relevant for a range of applications such as lossless energy transport and long-time light storage.

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Section: Discussionmentioning

confidence: 99%

Subradiance-protected excitation transport

2019

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“…So far, much of the microscopy work with neutral atoms has focused on alkali species, which have a single valence electron [14][15][16][21][22][23][24][25][26][27]. The increased complexity of species like the two-valence-electron alkaline-earth atoms and molecules brings new opportunities -new quantum computation architectures [28][29][30], new types of spin models [31][32][33], premier time-keeping [34][35][36][37] which have spurred the development of techniques for the microscopic detection and control of such particles [38][39][40][41]. Here, through the combined use of optical tweezer arrays, high-resolution imaging, and narrow-line spectroscopy, we show single-particle preparation and detection of the alkaline-earth atom strontium ( Fig.…”

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confidence: 99%

Microscopic Control and Detection of Ultracold Strontium in Optical-Tweezer Arrays

2018

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We demonstrate a set of tools for microscopic control of neutral strontium atoms. We report single-atom loading into an array of sub-wavelength scale optical tweezers, light-shift free control of a narrow-linewidth optical transition, three-dimensional ground-state cooling, and high-fidelity nondestructive imaging of single atoms on sub-wavelength spatial scales. Extending the microscopic control currently achievable in single-valence-electron atoms to species with more complex internal structure, like strontium, unlocks a wealth of opportunities in quantum information science, including tweezer-based metrology, new quantum computing architectures, and new paths to low-entropy many-body physics.

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“…At the trap boundaries the particle number vanishes. All these phases can be probed in the already existing technique of site resolved imaging which has been used to obtain the signature of Mott shells in the optical lattice experiments [56][57][58].…”

Section: Tcbs With U =mentioning

confidence: 99%

Quantum phases of constrained dipolar bosons in coupled one-dimensional optical lattices

Singh¹,

Mondal²,

Sahoo³

et al. 2017

Phys. Rev. A

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We investigate a system of two-and three-body constrained dipolar bosons in a pair of onedimensional optical lattices coupled to each other by the non-local dipole-dipole interactions. Assuming attractive dipole-dipole interactions, we obtain the ground state phase diagram of the system by employing the cluster mean-field theory. The competition between the repulsive on-site and attractive nearest-neighbor interactions between the chains yields three kinds of superfluids; namely the trimer superfluid, pair superfluid and the usual single particle superfluid along with the insulating Mott phase at the commensurate density. Besides, we also realize simultaneous existence of Mott insulator and superfluid phases for the two-and three-body constrained bosons, respectively. We also analyze the stability of these quantum phases in the presence of a harmonic trap potential.

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Site-resolved imaging of a bosonic Mott insulator using ytterbium atoms

Cited by 28 publications

References 28 publications

Subradiance-protected excitation transport

Subradiance-protected excitation transport

Microscopic Control and Detection of Ultracold Strontium in Optical-Tweezer Arrays

Quantum phases of constrained dipolar bosons in coupled one-dimensional optical lattices

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