Bose-Hubbard model in the canonical ensemble: a beyond mean-field approachUltracold atoms in optical lattices are versatile testbeds to study and manipulate equilibrium and out-of-equilibrium aspects of quantum many-body systems whose behavior can be described by…Tista Banerjee·Aug 3, 2025SaveLearn
Impact of quantum coherence on the dynamics and thermodynamics of quenched free fermions coupled to a localized defectWe investigate the non-equilibrium quantum dynamics and thermodynamics of free fermions suddenly coupled to a localized defect in a one-dimensional harmonic trap. This setup realizes a quantum quench…Beatrice Donelli, Gabriele De Chiara, Francesco Scazza et al.·Aug 2, 2025SaveLearn
Analytical description of collisional decoherence in a BEC double-well accelerometerBEC-based quantum sensors offer a huge, yet not fully explored potential in gravimetry and ac- celerometry. In this paper, we study a possible setup for such a device, which is a weakly interacting…Kateryna Korshynska, Sebastian Ulbricht·Aug 1, 2025SaveLearn
Nondestructive optomechanical detection scheme for Bose-Einstein condensatesWe present a two-tone heterodyne optical readout scheme to extract unequal-time density correlations along an arbitrary stationary interaction path from a pancake-shaped Bose-Einstein condensate,…Cisco Gooding, Cameron R. D. Bunney, Samin Tajik et al.·Aug 1, 2025SaveLearn
The Bose-Hubbard polaron from weak to strong couplingWe investigate the zero-temperature properties of a mobile impurity immersed in a bath of bosonic particles confined to a square lattice. We analyze the regimes of attractive and repulsive coupling…Tom Hartweg, Tanul Gupta, Guido Pupillo·Aug 1, 2025SaveLearn
Two-photon-assisted collisions in ultracold gases of polar moleculesWe present a theoretical formalism to treat the ultracold dynamics of a pair of colliding polar molecules submitted to two laser fields. We express the dressed Hamiltonian including the dipole-dipole…Charbel Karam, Gohar Hovhannesyan, Romain Vexiau et al.·Aug 1, 2025SaveLearn
Proposal for realizing Heisenberg-type quantum-spin models in Rydberg-atom quantum simulatorsWe investigate the magnetic-field dependence of the interaction between two Rydberg atoms, |nS1/2, mJ and |(n+1)S1/2, mJ. In this setting, the effective spin-1/2 Hamiltonian…Masaya Kunimi, Takafumi Tomita·Jul 30, 2025SaveLearn
Non-periodic Boundary Conditions for Euler Class and Dynamical Signatures of ObstructionWhile the landscape of free-fermion phases has drastically been expanded in the last decades, recently novel multi-gap topological phases were proposed where groups of bands can acquire new…Osama A. Alsaiari, Adrien Bouhon, Robert-Jan Slager et al.·Jul 30, 2025SaveLearn
Spatially-periodic states in a strongly dipolar 164Dy-162Dy mixtureWe demonstrate the formation of a novel eigenstate in a strongly dipolar binary 164Dy-162Dy mixture, where the inter- and intraspecies dipolar lengths are larger than the corresponding…S. K. Adhikari·Jul 29, 2025SaveLearn
Axially confined binary quantum droplets: ground states and central vorticesUltracold miscible mixtures of bosonic gases have been observed to form quantum droplet states stabilized by beyond-mean-field quantum fluctuations. Here we study the properties of the droplets when…Srivatsa B. Prasad, Thomas P. Billam, Nick G. Parker·Jul 29, 2025SaveLearn
Condensate-mediated dimerization of impurities in atomic BECsWe show that strongly correlated impurities confined in an optical lattice can form localized, molecule-like dimer states in the presence of a Bose-Einstein condensate (BEC). By systematically…Hoshu Hiyane, Thomás Fogarty, Jose Carlos Pelayo et al.·Jul 29, 2025SaveLearn
Saturating interaction in coherently coupled two-component Bose-Einstein condensatesRabi-coupled spinor Bose-Einstein condensates, with competing intra-and interspecies interactions, enable independent control of two-and three-body interactions. We show that coupling can also drive…R Eid, S Tiengo, M Lévy et al.·Jul 29, 2025SaveLearn
Field Theory of Borromean Super-counterfluidsWe introduce a class of dynamical field theories for N-component "Borromean" (N≥ 3) super-counterfluid order, naturally formulated in terms of inter-species bosonic fields ψαβ.…Anatoly Kuklov, Leo Radzihovsky, Boris Svistunov·Jul 29, 2025SaveLearn
Three-boson scattering hypervolume for a nonzero orbital angular momentumWe analyze the zero energy collision of three identical bosons in the same internal state with total orbital angular momentum L=2, assuming short range interactions. By solving the Schrödinger…Pui In Ip, Shina Tan·Jul 28, 2025SaveLearn
Anomalous fluctuations of Bose-Einstein condensates in optical latticesFluctuations are fundamental in physics and important for understanding and characterizing phase transitions. In this spirit, the phase transition to the Bose-Einstein condensate (BEC) is of specific…Zahra Jalali-Mola, Niklas Käming, Luca Asteria et al.·Jul 28, 2025SaveLearn
Low-energy atomic scattering: s-wave relation between the interaction potential and the phase shiftWe investigate the on-shell approximation in the context of s-wave scattering for ultracold two-body collisions. Our analysis systematically covers spatial dimensions D=1,2,3 , with the aim of…Francesco Lorenzi, Luca Salasnich·Jul 27, 2025SaveLearn
A Gross-Pitaevskii theory for an excitonic incompressible Bose solidWe show that interlayer excitons in double-layer semiconductor heterostructures can form a Bose solid, which is an incompressible supersolid characterized by exactly one boson per lattice site. This…Sara Conti, Andrey Chaves, Alexander R. Hamilton et al.·Jul 27, 2025SaveLearn
Phases of a Bose-Einstein condensate of microwave-shielded dipolar moleculesBose-Einstein condensation of dipolar molecules can be achieved by shielding loss channels with microwave fields. The microwave coupling can be approximated by effective dipole-dipole interactions…Chiara J. Polterauer, Robert E. Zillich·Jul 25, 2025SaveLearn
Observation of Kibble-Zurek Behavior across Topological Transitions of a Chern Band in Ultracold AtomsThe Kibble-Zurek (KZ) mechanism renders a theoretical framework for elucidating the formation of topological defects across continuous phase transitions. Nevertheless, it is not immediately clear…Huan Yuan, Chang-Rui Yi, Jia-Yu Guo et al.·Jul 24, 2025SaveLearn
Dynamics of Quantum Droplets in a Quasi-one-dimensional Framework: An Analytical ApproachQuantum droplets have been recently observed in dipolar Bose-Einstein condensates (BECs) and in BEC mixtures. This forms the motivation for us to explore the dynamics of these droplets. We make use…Akshat Pandey, Ayan Khan·Jul 24, 2025SaveLearn
Relaxation Dynamics in Atomic-Molecular Bose Condensates in the Presence of Gaussian NoiseWe investigate the dynamics of atomic and molecular bosons weakly coupled via Feshbach detuning in the presence of Gaussian white noise. The time-evolution of the population imbalance between the two…A. Mukherjee, R. Dasgupta·Jul 24, 2025SaveLearn
Correlation effects in one-dimensional metallic quantum wires under various confinementsDynamical response theory is used to investigate various transverse confinements on electron correlations in the ground state of a ferromagnetic one-dimensional quantum wire for different wire widths…Vidit Gangwar, Vinod Ashokan, Ankush Girdhar et al.·Jul 23, 2025SaveLearn
Polarization-Sensitive Imaging in Magnetic EnvironmentsNondestructive spin-resolved imaging of ultracold atomic gases requires calculating the differences of the refractive indices seen by two circular probe polarizations. Perfect overlap of the two…Nejc Blaznik, Dries van Oosten, Peter van der Straten·Jul 23, 2025SaveLearn
Dynamic correlations in Calogero-Sutherland modelThe Calogero-Sutherland model represents a paradigmatic example of an integrable quantum system with applications ranging from cold atoms to random matrix theory. Combining sum rules with the Monte…G. Lleopart Motis, D. M. Gangardt, M. Pustilnik et al.·Jul 23, 2025SaveLearn
Mutual friction and vortex Hall angle in a strongly interacting Fermi superfluidThe motion of a quantized vortex is intimately connected with its microscopic structure and the elementary excitations of the surrounding fluid. In this work, we investigate the two-dimensional…Nicola Grani, Diego Hernández-Rajkov, Cyprien Daix et al.·Jul 23, 2025SaveLearn