Erratum: Formation of a Spin Texture in a Quantum Gas Coupled to a Cavity [Phys. Rev. Lett. 
<b>120</b>
, 223602 (2018)]

Landini, Manuele; Dogra, Nishant; Kroeger, Katrin; Hruby, Lorenz; Donner, Tobias; Esslinger, Tilman

doi:10.1103/physrevlett.125.069901

Cited by 18 publications

(26 citation statements)

References 4 publications

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“…Spontaneous self-organization phenomena are ubiquitous in out-of-equilibrium classical and quantum dynamics [1,2]. In recent years, cold and ultracold gases have provided useful platforms for probing light-atom self-structuring by means of density modes or internal states, resulting in crystalline (density) or magnetic order respectively [3][4][5][6][7]. In the first case, the emerging dynamical potential for the atoms induces a density grating which, in turn, scatters photons into the side-band modes creating the potential and leading to optomechanical self-structuring [8].…”

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confidence: 99%

Multiple Self-Organized Phases and Spatial Solitons in Cold Atoms Mediated by Optical Feedback

et al. 2021

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We study the transverse self-structuring of a cloud of cold atoms with effective atomic interactions mediated by a coherent driving beam retro-reflected by means of a single mirror. The resulting self-structuring due to optomechanical forces is much richer than that of an effective-Kerr medium, displaying hexagonal, stripe and honeycomb phases depending on the interaction strength parametrized by the linear susceptibility. Phase domains are described by real Ginzburg-Landau amplitude equations. In the stripe phase the system recovers inversion symmetry. Moreover, the subcritical character of the honeycomb phase allows for light-density feedback solitons functioning as self-sustained dark atomic traps with motion controlled by phase gradients in the driving beam.

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Multiple Self-Organized Phases and Spatial Solitons in Cold Atoms Mediated by Optical Feedback

et al. 2021

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“…Among various long-range interacting ultracold atom systems, Bose gases in optical cavities are unique in the sense that they assume infinite-long range (ILR) interactions. In particular, ultracold Bose gases with internal spin degrees of freedom have recently been realized in experiments [5][6][7][8][9][10][11], featuring both an ILR spin-spin and an ILR density-density interaction mediated by cavity photons. In the experiments of Ref.…”

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confidence: 99%

“…In the experiments of Ref. [5,9], two macroscopic orders, namely the SDW and the CDW order, have been observed and a first-order transition between these two ordered phases have been identified by tuning the ratio between these two types of ILR interactions. Noticing current experiments have mainly focused on the low-temperature regime where the temperature is much smaller than all other energy scales in the system, it is intriguing to expect that at a comparable temperature scale, a new scenario for the interplay between the two macroscopic orders could emerge.…”

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“…System and model in the deep Mott-insulator limit.-Among current diverse experimental setups of multicomponent Bose gases in optical cavities [5][6][7][8][9][10][11], here we concentrate on the experimental setups in Ref. [5,9], where, in particular, cavity mediated spin-spin interactions were realized. Moreover, an additional static square optical lattice is assumed in the system, similar to what has been realized for single-component Bose gases in optical cavities [12].…”

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Emergent criticality and universality class of spin and charge density wave transitions of two-component lattice Bose gases in optical cavities at finite temperature

He,

2020

Preprint

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We investigate the finite temperature spin density wave (SDW) and charge density wave (CDW) transition of two-component lattice spinor Bose gases in optical lattices in the Mott-insulator limit. At the temperature scale around half of the on-site interaction energy, we find a new critical regime emerges and features, in particular, a new bicritical line and two critical lines associated with the finite temperature SDW-CDW, homogeneous-SDW, and homogeneous-CDW transition, respectively. Direct calculation of the critical exponents for the scaling behavior and investigating on the effective theory in this critical regime show that they belong to the five-dimensional Ising universality class, clearly manifesting the long-range character of the system's interaction. Our prediction of the emergent criticality can be readily observed by current experimental setups operated at the intermediate temperature scale around half the on-site interaction energy.

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Spontaneous atomic crystallization via diffractive dephasing in optical cavities

Ackemann

Boquete

Baio

et al. 2021

J. Phys.: Conf. Ser.

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The design of an experiment on the spontaneous crystallization of a laser-cooled, but thermal atomic cloud into a hexagonally structured phase is discussed. Atomic interaction is mediated by the dipole potential of an optical lattice formed spontaneously in a multi-mode degenerate cavity from single-mode longitudinal pumping. The length scale of the structure is given by the diffractive dephasing between the spontaneous sidebands and the on-axis pump. A linear stability indicates that the transition can be observed in a cavity of moderate finesse compatible with having the cavity mirrors outside the vacuum cell. A new anti-reflection coated cell has been assembled for this purpose.

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Erratum: Formation of a Spin Texture in a Quantum Gas Coupled to a Cavity [Phys. Rev. Lett. 120 , 223602 (2018)]

Cited by 18 publications

References 4 publications

Multiple Self-Organized Phases and Spatial Solitons in Cold Atoms Mediated by Optical Feedback

Multiple Self-Organized Phases and Spatial Solitons in Cold Atoms Mediated by Optical Feedback

Emergent criticality and universality class of spin and charge density wave transitions of two-component lattice Bose gases in optical cavities at finite temperature

Spontaneous atomic crystallization via diffractive dephasing in optical cavities

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