70 papers
This paper investigates the localization transition of interacting particles in one-dimensional correlated disorder with vanishing backward scattering, using renormalization group methods and numerical simulations to demonstrate that the transition point shifts to the non-interacting limit and that the localization length scaling deviates from conventional behavior.
This paper presents an efficient, GPU-extendable finite-difference simulation framework that significantly outperforms conventional methods in modeling bubble-shaped Bose-Einstein condensates, enabling the identification of key parameters for their experimental realization in microgravity environments like the International Space Station.
This study investigates the thermodynamic properties of finite Su-Schrieffer-Heeger chains, revealing a distinct metastable phase marked by heat capacity anomalies that emerges from hopping asymmetry and finite-size effects, thereby uncovering a rich bulk phase structure separate from topological boundary-driven transitions.
This paper demonstrates that a Dynamical Chiral Spin Liquid (DCSL) with Z2 topological order can be stabilized at finite driving frequencies on a square lattice, where the high-frequency Magnus expansion fails, by showing that the system remains in a stationary regime characterized by specific Floquet quasi-energy features and a tensor network representation with Z2 gauge symmetry, until a critical frequency is reached where heating and chaotic behavior ensue.
This paper investigates how the parameters of phase contrast imaging in cold atom systems influence both the observation and the backaction on a Bose-Einstein condensate array, revealing regimes where the measurement selectively probes bare particles or quasiparticles while offering control over measurement-induced quasiparticle creation and diffusion.
This paper demonstrates that a driven-dissipative system coupling the Landau levels of a charge-neutral particle in a synthetic gauge potential to a quantized optical cavity can be effectively modeled as two highly nonlinearly coupled quantum harmonic oscillators, giving rise to hybrid "Landau polaritons" with unique entanglement, squeezing, and diverse nonequilibrium dynamics.
This review surveys universality in driven open quantum matter, employing a Lindblad-Keldysh field theory framework to discuss principles distinguishing equilibrium from nonequilibrium stationary states and categorizing universal phenomena into paradigmatic nonequilibrium realizations, novel nonequilibrium universality, and genuinely quantum nonequilibrium effects.
This paper demonstrates that Bayesian post-correction of non-Markovian errors in bosonic lattice gravimetry via in situ measurements can recover Heisenberg-limited precision, provided the number of trapping modes is at least two greater than the number of independent error sources.
This paper introduces a novel framework for engineering persistent coherent oscillations in Markovian open quantum systems by utilizing block-diagonal Hamiltonian and jump operator structures to sustain non-zero dissipative dynamics, thereby extending beyond traditional decoherence-free subspace approaches.
This paper identifies and characterizes two previously elusive families of core-bound excitations (varicose and fluting waves) on Gross-Pitaevskii vortices, detailing their dispersion relations across different wavelength limits and proposing a spectroscopic protocol for their experimental detection.
This paper reports the first realization of a spin-resolved quantum-gas microscope for fermionic Sr, enabling site-resolved detection of all 10 spin states in SU(N) Fermi-Hubbard systems to probe exotic magnetism and magnetic correlations.
This paper establishes that dynamical quantum phase transitions (DQPTs) in generic quadratic fermionic systems are fundamentally characterized by the restoration of spin-flip symmetry in specific zero-energy dynamical critical modes, providing a unified framework that explains the necessary but insufficient conditions for DQPTs and their relationship to ground-state quantum phase transitions.
This paper proposes a spin-dependent Kronig-Penney lattice realization of a triangular ladder for ultracold atoms that, through controllable pair hopping and geometric frustration, gives rise to robust pair superfluid and chiral superfluid phases as confirmed by density matrix renormalization group calculations and XXZ spin model mapping.
The paper demonstrates that for open quantum systems coupled to Gaussian environments, the evolution can be described by a Markovian quantum master equation with an error that decreases exponentially with the inverse system-bath coupling strength, achieved through a generalized Born-Markov approximation that can be iterated to arbitrarily high orders.
This study investigates the non-equilibrium dynamics of the disordered Power-of-Two model, revealing that while strong disorder induces localization and unique non-monotonic scrambling signatures, the system ultimately remains ergodic in the thermodynamic limit for any finite disorder strength.
Using sign-problem-free quantum Monte Carlo simulations, this study maps the global phase diagram of a mobile impurity in a two-dimensional Bose-Hubbard model to reveal two distinct self-trapping mechanisms: an interaction-driven crossover in the superfluid phase characterized by impurity winding number collapse, and a compressibility-controlled localization in the Mott insulator phase driven by bath stiffness loss and defect quantization.
This paper proposes and theoretically validates an efficient experimental scheme using multiparameter global optimization and lattice phase adjustment to load ultracold Fermi gases with broad momentum distributions into higher orbital bands of one-dimensional optical lattices, while identifying multiple quasi-momentum state occupancy as the primary factor limiting loading efficiency.
This paper demonstrates that Hilbert-space quantization in polariton lattices enables a dynamical transition between superfluid and Bose-insulating phases, where weak nonlinearity sustains global phase coherence while strong nonlinearity induces inter-level mixing that suppresses coherence.
This study reveals that while the onset of chaos in the one-dimensional Bose-Hubbard model induces a sub-ballistic regime in the correlation transport distance due to long-time tails and front amplitude decay, the correlation front itself maintains ballistic propagation across all interaction strengths, offering a more nuanced understanding of correlation dynamics beyond simple light-cone models.
This paper proposes and analyzes a scalable scheme for implementing arbitrary unitary transformations on ultracold atoms in optical lattices by mapping superlattice dynamics to discrete linear optics, enabling high-density, sublinear-depth coherent rearrangement robust against experimental imperfections.