Squeezing Effect in the Gouy Phase of Matter Waves

• URL: http://arxiv.org/abs/2504.15123v1
• Date: Mon, 21 Apr 2025 14:19:36 GMT
• Title: Squeezing Effect in the Gouy Phase of Matter Waves
• Authors: Thiago M. S. Oliveira, Lucas S. Marinho, F. C. V. de Brito, Marcos Sampaio, Irismar G. da Paz,
• Abstract summary: We investigate the Gouy phase emerging from the time evolution of confined matter waves in a harmonic potential.<n>We reveal intriguing effects, with a particular focus on squeezing.<n>Our findings expand the realm of quantum-enhanced technologies, including quantum sensing and precision measurement.
• Score: 0.0
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: We investigate the Gouy phase emerging from the time evolution of confined matter waves in a harmonic potential. Specifically, we analyze the quantum dynamics of a Gaussian wavepacket that exhibits position--momentum correlations. By tuning the parameters governing its evolution, we reveal intriguing effects, with a particular focus on squeezing. Notably, during the wavepacket evolution quantum spreading and squeezing processes emerge, giving rise to Gouy phase contributions of $\pi/4$ rad, establishing a clear link between the Gouy phase and a purely quantum phenomenon. Furthermore, the interplay between wavepacket squeezing and one-dimensional spreading leads to a total Gouy phase accumulation of $\pi/2$ rad in an oscillation period. Both squeezing and Gouy phase have individually proven valuable in state engineering and quantum metrology. By demonstrating a direct, controllable relationship between these two fundamental processes, our findings expand the realm of quantum-enhanced technologies, including quantum sensing and precision measurement.

Related papers

• Quantum signatures and decoherence during inflation from deep subhorizon perturbations [0.0]
  We investigate the decoherence and associated quantum corrections to the correlation functions of superhorizon scalar curvature perturbations. The latter are considered as an open quantum system which undergoes quantum decoherence induced by a time-dependent environment. We compute the quantum corrections to cosmological correlation functions, by solving the transport equations induced by the quantum master equation.
  arXiv  Detail & Related papers  (2025-03-29T17:10:19Z)
• Thermalization and Criticality on an Analog-Digital Quantum Simulator [133.58336306417294]
  We present a quantum simulator comprising 69 superconducting qubits which supports both universal quantum gates and high-fidelity analog evolution. We observe signatures of the classical Kosterlitz-Thouless phase transition, as well as strong deviations from Kibble-Zurek scaling predictions. We digitally prepare the system in pairwise-entangled dimer states and image the transport of energy and vorticity during thermalization.
  arXiv  Detail & Related papers  (2024-05-27T17:40:39Z)
• Probing critical phenomena in open quantum systems using atom arrays [3.365378662696971]
  At quantum critical points, correlations decay as a power law, with exponents determined by a set of universal scaling dimensions. Here, we employ a Rydberg quantum simulator to adiabatically prepare critical ground states of both a one-dimensional ring and a two-dimensional square lattice. By accounting for and tuning the openness of our quantum system, we are able to directly observe power-law correlations and extract the corresponding scaling dimensions.
  arXiv  Detail & Related papers  (2024-02-23T15:21:38Z)
• Amplification of quantum transfer and quantum ratchet [56.47577824219207]
  We study a model of amplification of quantum transfer and making it directed which we call the quantum ratchet model. The ratchet effect is achieved in the quantum control model with dissipation and sink, where the Hamiltonian depends on vibrations in the energy difference synchronized with transitions between energy levels. Amplitude and frequency of the oscillating vibron together with the dephasing rate are the parameters of the quantum ratchet which determine its efficiency.
  arXiv  Detail & Related papers  (2023-12-31T14:04:43Z)
• Gouy phase and quantum interference with cross-Wigner functions for matter-waves [0.0]
  We analyze the evolution of matter waves initially characterized by a correlated Gaussian wave packet. We find that the cross-Wigner acquires a Gouy phase difference due to different evolution times. We propose a technique based on the Wigner function to reconstruct the cross-Wigner from the spatial intensity interference term.
  arXiv  Detail & Related papers  (2023-12-29T21:57:41Z)
• Squeezing oscillations in a multimode bosonic Josephson junction [0.4335300149154109]
  We show how to enhance the quantum correlations in a one-dimensional multimode bosonic Josephson junction. Our work provides new ways for engineering correlations and entanglement in the external degree of freedom of interacting many-body systems.
  arXiv  Detail & Related papers  (2023-04-05T23:29:05Z)
• Variational waveguide QED simulators [58.720142291102135]
  Waveguide QED simulators are made by quantum emitters interacting with one-dimensional photonic band-gap materials. Here, we demonstrate how these interactions can be a resource to develop more efficient variational quantum algorithms.
  arXiv  Detail & Related papers  (2023-02-03T18:55:08Z)
• Quantum chaos driven by long-range waveguide-mediated interactions [125.99533416395765]
  We study theoretically quantum states of a pair of photons interacting with a finite periodic array of two-level atoms in a waveguide. Our calculation reveals two-polariton eigenstates that have a highly irregular wave-function in real space.
  arXiv  Detail & Related papers  (2020-11-24T07:06:36Z)
• Observation of high-order Mollow triplet by quantum mode control with concatenated continuous driving [8.674241138986925]
  We report the first observation of high-order effects in the Mollow triplet structure due to strong driving. Results are validated by the Floquet theory.
  arXiv  Detail & Related papers  (2020-08-14T16:02:05Z)
• Waveguide quantum optomechanics: parity-time phase transitions in ultrastrong coupling regime [125.99533416395765]
  We show that the simplest set-up of two qubits, harmonically trapped over an optical waveguide, enables the ultrastrong coupling regime of the quantum optomechanical interaction. The combination of the inherent open nature of the system and the strong optomechanical coupling leads to emerging parity-time (PT) symmetry. The $mathcalPT$ phase transition drives long-living subradiant states, observable in the state-of-the-art waveguide QED setups.
  arXiv  Detail & Related papers  (2020-07-04T11:02:20Z)
• Zitterbewegung and Klein-tunneling phenomena for transient quantum waves [77.34726150561087]
  We show that the Zitterbewegung effect manifests itself as a series of quantum beats of the particle density in the long-time limit. We also find a time-domain where the particle density of the point source is governed by the propagation of a main wavefront. The relative positions of these wavefronts are used to investigate the time-delay of quantum waves in the Klein-tunneling regime.
  arXiv  Detail & Related papers  (2020-03-09T21:27:02Z)

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.