The role of interaction in matter wave optics with motional states

• URL: http://arxiv.org/abs/2511.12681v1
• Date: Sun, 16 Nov 2025 16:48:04 GMT
• Title: The role of interaction in matter wave optics with motional states
• Authors: RuGway Wu, Maximilian Prüfer, Jörg Schmiedmayer,
• Abstract summary: Matter-wave optics is often viewed as a linear analogue of photonics.<n>In ultracold quantum gases, interactions are intrinsic and can rival or exceed kinetic and optical energy scales.
• Score: 0.0
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Matter-wave optics is often viewed as a linear analogue of photonics, where noninteracting particles are coherently split, diffracted, and recombined, and interference arises from single-particle coherence. In ultracold quantum gases, however, interactions are intrinsic and can rival or exceed kinetic and optical energy scales. This drives matter-wave optics into a nonlinear regime: diffraction and momentum distributions become interaction-dependent, interference contrast degrades or collapses, and revival dynamics appear. In the mean time, interactions can generate squeezing and entanglement, enabling sensitivities beyond the standard quantum limit. We showcase representative examples - covering diffraction, splitting, and interferometry - that illustrate how interactions reshape the basic elements of matter-wave optics and open new opportunities for nonlinear quantum technologies.

Related papers

• Nonclassical Driven-Dissipative Dynamics in Collective Quantum Optics [51.56484100374058]
  We study ensembles of interacting quantum emitters coherently driven by a laser field and coupled to photonic structures.<n>We find that off-resonant virtual states may gain population through dissipation, redefining their role in open systems.<n>Our models address challenges like inhomogeneous broadening and decoherence, demonstrating the feasibility of harnessing cooperative light-matter effects for quantum technologies.
  arXiv  Detail & Related papers  (2025-09-12T20:01:55Z)
• Interference between non-overlapping waves [0.0]
  In classical mechanics and electromagnetism, interference occurs when two or more waves overlap at the same point in spacetime.<n>We develop a theoretical model in which a spatially extended atom simultaneously couples to two distant fields.<n>We propose an experimentally feasible implementation using superconducting circuits, where a giant artificial atom interacts with two independent resonators.
  arXiv  Detail & Related papers  (2025-08-14T13:23:22Z)
• Many-Body Quantum Optics in a Bose-Hubbard Waveguide [0.0]
  We study the collective decay and coherent interactions of quantum emitters coupled to a one-dimensional Bose-Hubbard waveguide.<n>We show that photon-photon interactions alone can trigger a superradiant burst, independent of emitter spacing and transition frequency.<n>Our work bridges many-body physics and waveguide QED, revealing how photonic many-body states shape emitter dynamics.
  arXiv  Detail & Related papers  (2025-05-05T18:00:00Z)
• Nonlinear dynamical Casimir effect and Unruh entanglement in waveguide QED with parametrically modulated coupling [83.88591755871734]
  We study theoretically an array of two-level qubits moving relative to a one-dimensional waveguide. When the frequency of this motion approaches twice the qubit resonance frequency, it induces parametric generation of photons and excitation of the qubits. We develop a comprehensive general theoretical framework that incorporates both perturbative diagrammatic techniques and a rigorous master-equation approach.
  arXiv  Detail & Related papers  (2024-08-30T15:54:33Z)
• Directional spontaneous emission in photonic crystal slabs [49.1574468325115]
  Spontaneous emission is a fundamental out-of-equilibrium process in which an excited quantum emitter relaxes to the ground state due to quantum fluctuations. One way to modify these photon-mediated interactions is to alter the dipole radiation patterns of the emitter, e.g., by placing photonic crystals near them. Our study delves into the interaction between these directional emission patterns and the aforementioned variables, revealing the untapped potential to fine-tune collective quantum optical phenomena.
  arXiv  Detail & Related papers  (2023-12-04T15:35:41Z)
• Super- and subradiant dynamics of quantum emitters mediated by atomic matter waves [0.0]
  We explore cooperative dynamics of quantum emitters in an optical lattice that interact by radiating atomic matter waves. We demonstrate directional super- and subradiance from a superfluid phase with tunable radiative phase lags. We observe a coupling to collective bound states with radiation trapped at and between the emitters.
  arXiv  Detail & Related papers  (2023-11-16T00:37:06Z)
• Quantum correlated photons via a passive nonlinear microcavity [1.0753191494611891]
  We create non-classical photon correlations, including photon anti-bunching, via a passive InGaP photonic integrated circuit. Our work opens a new route in controlling quantum light by harnessing highly-engineerable bulk optical nonlinearities.
  arXiv  Detail & Related papers  (2023-04-23T15:02:36Z)
• Cavity-Mediated Collective Momentum-Exchange Interactions [0.0]
  We realize for the first time momentum-exchange interactions in which atoms exchange their momentum states via collective emission and absorption of photons from a common cavity mode. The momentum-exchange interaction leads to an observed all-to-all Ising-like interaction in a matter-wave interferometer, which is useful for entanglement generation.
  arXiv  Detail & Related papers  (2023-04-03T23:12:58Z)
• Quantum vortices of strongly interacting photons [52.131490211964014]
  Vortices are hallmark of nontrivial dynamics in nonlinear physics. We report on the realization of quantum vortices resulting from a strong photon-photon interaction in a quantum nonlinear optical medium. For three photons, the formation of vortex lines and a central vortex ring attests to a genuine three-photon interaction.
  arXiv  Detail & Related papers  (2023-02-12T18:11:04Z)
• Formation of robust bound states of interacting microwave photons [148.37607455646454]
  One of the hallmarks of interacting systems is the formation of multi-particle bound states. We develop a high fidelity parameterizable fSim gate that implements the periodic quantum circuit of the spin-1/2 XXZ model. By placing microwave photons in adjacent qubit sites, we study the propagation of these excitations and observe their bound nature for up to 5 photons.
  arXiv  Detail & Related papers  (2022-06-10T17:52:29Z)
• Waveguide quantum electrodynamics: collective radiance and photon-photon correlations [151.77380156599398]
  Quantum electrodynamics deals with the interaction of photons propagating in a waveguide with localized quantum emitters. We focus on guided photons and ordered arrays, leading to super- and sub-radiant states, bound photon states and quantum correlations with promising quantum information applications.
  arXiv  Detail & Related papers  (2021-03-11T17:49:52Z)

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.