Controlled generation of 3D vortices in driven atomic Josephson junctions

• URL: http://arxiv.org/abs/2511.05645v2
• Date: Wed, 12 Nov 2025 01:29:28 GMT
• Title: Controlled generation of 3D vortices in driven atomic Josephson junctions
• Authors: Vijay Pal Singh, Ludwig Mathey, Herwig Ott, Luigi Amico,
• Abstract summary: We propose an ac-driven atomic Josephson junction as a clean and tunable source of 3D solitary waves in quantum fluids.<n>Depending on the height of the junction barrier, the emitted excitations appear as vortex rings at low velocity or vorticity-free rarefaction pulses near the sound velocity.
• Score: 0.29165586612027233
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: We propose an ac-driven atomic Josephson junction as a clean and tunable source of three dimensional (3D) solitary waves in quantum fluids. Depending on the height of the junction barrier, the emitted excitations appear as vortex rings at low velocity or vorticity-free rarefaction pulses near the sound velocity, thus spanning the complete Jones-Roberts family of solitons. The Shapiro-step phenomenon renders the emission deterministic: on the first, second, third Shapiro steps, the junction ejects one, two, and three solitary excitations per drive cycle. This enables controlled generation of single- and multi-excitation configurations, allowing detailed studies of the full crossover between vortex rings and rarefaction pulses and their interaction dynamics. In particular, deterministic multi-ring emission provides insights into leapfrogging dynamics of two and three coaxial rings and their decay via boundary-assisted, sound-mediated processes. This ac-driven protocol establishes a compact and reproducible platform for generating, classifying, and controlling 3D solitonic excitations, paving the way for precision studies of nonlinear vortex dynamics, dissipation, and quantum turbulence in trapped superfluids.

Related papers

• Extending spin-lattice relaxation theory to three-phonon processes [41.99844472131922]
  Three-phonon contributions to spin relaxation only become relevant at temperatures inaccessible to experiments for this molecule.<n>We numerically show that a relatively small increase in spin-phonon coupling would lead to a crossover between three- and two-phonon processes' efficiency at room temperature.
  arXiv  Detail & Related papers  (2026-03-05T17:23:45Z)
• Emergence of Turbulence in a counterflow geometry of 2D Polariton Quantum Fluids [0.0]
  We numerically investigate the nonlinear dynamics of a two-dimensional exciton-polariton quantum fluid driven by two counter-propagating laser beams.<n>We identify four distinct regimes-linear, solitonic, turbulent, and superfluid-emerging from the interplay between pump strength, laser detuning, and injected momentum.
  arXiv  Detail & Related papers  (2026-03-05T12:53:14Z)
• Symmetry-protected topology and deconfined solitons in a multi-link $\mathbb{Z}_2$ gauge theory [45.88028371034407]
  We study a $mathbbZ$ lattice gauge theory defined on a multi-graph with links that can be visualized as great circles of a spherical shell.<n>We show that this leads to state-dependent tunneling amplitudes underlying a phenomenon analogous to the Peierls instability.<n>By performining a detailed analysis based on matrix product states, we prove that charge deconfinement emerges as a consequence of charge-fractionalization.
  arXiv  Detail & Related papers  (2026-03-02T22:59:25Z)
• Single particle dynamical signature of topology induced by single mode cavities in Su-Schrieffer-Heeger chain [0.0]
  We study the dynamics of a single particle in a one-dimensional Su-Schrieffer-Heeger chain coupled to multiple cavity modes.<n>We show that, whenever the frequency is larger than the static hopping amplitudes, the coupling induces a discontinuous jump in the MCD.<n>For frequencies comparable to the static hopping amplitudes, topological order competes with dissipative effects, which makes the MCD behave smoothly.
  arXiv  Detail & Related papers  (2025-12-10T10:47:46Z)
• Emergent spin order and steady-state superradiance in one-dimensional baths [0.0]
  Spontaneous collective decay in driven atomic ensembles can generate coherence far from equilibrium.<n>We analyze atoms coupled to one-dimensional electromagnetic baths through two models.
  arXiv  Detail & Related papers  (2025-11-13T18:56:46Z)
• Weak-link to tunneling regime in a 3D atomic Josephson junction [0.25655761752240497]
  We investigate the transition from weak-link transport to the tunneling Josephson regime in a 3D Bose-Einstein condensate confined in a cylindrical, tube-like trap.<n>We map out the smooth crossover between these regimes through measurements of the critical current and Josephson oscillations.
  arXiv  Detail & Related papers  (2025-09-03T18:00:31Z)
• Generation of Tunable Three-Photon Entanglement in Cubic Nonlinear Coupled Waveguides [39.745906106570985]
  We theoretically investigate the generation of three-photon states with spatial entanglement in cubic nonlinear coupled waveguides.<n>This work demonstrates an integrated source of three-photon spatial entanglement on a simple chip, offering additional reconfigurability for advanced multiphoton quantum applications.
  arXiv  Detail & Related papers  (2024-11-12T02:25:45Z)
• Characterization of Polariton Dynamics in a Multimode Cavity: Noise-enhanced Ballistic Expansion [0.0]
  We present a theoretical analysis of packet dynamics in a noisy emitter lattice embedded in a multi-mode microcavity. We uncover a series of dynamic phenomena in both the noise-free and noisy cases. This study paves the way for future experiments focused on light-matter interactions in complex systems.
  arXiv  Detail & Related papers  (2024-10-14T19:58:00Z)
• Low energy excitations in bosonic quantum quasicrystals [44.99833362998488]
  We present the first principles of the low-energy effective action for bosonic self-organizedcrystals. Our generalized elasticity approach retains appropriate number of phase- and conjugate quantum density degrees-of-freedom. We discuss the fate of each excitation mode at the low and high density phase transitions limiting the quantum quasicrystal phase.
  arXiv  Detail & Related papers  (2024-07-30T22:36:40Z)
• Effective Hamiltonian approach to the quantum phase transitions in the extended Jaynes-Cummings model [0.0]
  A complex discretization approximation for the environment is proposed to study the quantum phase transition in the extended Jaynes-Cumming model. It is found that the ground state of this effective Hamiltonian determines the spin dynamics in the single-excitation subspace.
  arXiv  Detail & Related papers  (2023-07-25T14:11:35Z)
• Dissipative stabilization of maximal entanglement between non-identical emitters via two-photon excitation [49.1574468325115]
  Two non-identical quantum emitters, when placed within a cavity and coherently excited at the two-photon resonance, can reach stationary states of nearly maximal entanglement. We show that this mechanism is merely one among a complex family of phenomena that can generate both stationary and metastable entanglement when driving the emitters at the two-photon resonance.
  arXiv  Detail & Related papers  (2023-06-09T16:49:55Z)
• Nonthermal entanglement dynamics in a dipole-facilitated glassy model with disconnected subspaces [7.355634530181157]
  We partition the Hilbert space into three subspaces, two of which are nonthermal and the other acts as an intrinsic thermal bath. The resulting glassy system freely oscillates in nonthermal subspaces, making the quantum entanglement perform like a substantial qubit.
  arXiv  Detail & Related papers  (2023-03-19T06:08:20Z)
• Autonomous coherence protection of a two-level system in a fluctuating environment [68.8204255655161]
  We re-examine a scheme originally intended to remove the effects of static Doppler broadening from an ensemble of non-interacting two-level systems (qubits) We demonstrate that this scheme is far more powerful and can also protect a single (or even an ensemble) qubit's energy levels from noise which depends on both time and space.
  arXiv  Detail & Related papers  (2023-02-08T01:44:30Z)

This list is automatically generated from the titles and abstracts of the papers in this site.

This site does not guarantee the quality of this site (including all information) and is not responsible for any consequences.