Formation and Controlling of Optical Hopfions in High Harmonic Generation
- URL: http://arxiv.org/abs/2410.06032v1
- Date: Tue, 8 Oct 2024 13:33:29 GMT
- Title: Formation and Controlling of Optical Hopfions in High Harmonic Generation
- Authors: Zijian Lyu, Yiqi Fang, Yunquan Liu,
- Abstract summary: Toroidal vortex is a novel and exotic structured light with potential applications in photonic topology and quantum information.
We show that the spatial distribution of harmonic spectra reveal unique structures, which are kinds of high-order topological toroidal vortex.
- Score: 0.0
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: Toroidal vortex is a kind of novel and exotic structured light with potential applications in photonic topology and quantum information. Here, we present the study on high harmonic generation (HHG) from the interaction of the intense toroidal vortices with atoms. We show that the spatial distribution of harmonic spectra reveal unique structures, which are kinds of high-order topological toroidal vortex because of the rotating of the driving fields with transverse orbital angular momentum. Then we show that, by synthesizing the toroidal vortices and optical vortices with longitudinal orbital angular momentum, it is able to generate the optical hopfions in extreme ultraviolet (EUV) range, which exhibit completely different topological property compared with both the driving fields. Harnessing the spin angular momentum selection rules, we further show that one can control the topological texture and channel each harmonic into a single mode of controllable Hopf invariant.
Related papers
- Higher-order topological Peierls insulator in a two-dimensional
atom-cavity system [58.720142291102135]
We show how photon-mediated interactions give rise to a plaquette-ordered bond pattern in the atomic ground state.
The pattern opens a non-trivial topological gap in 2D, resulting in a higher-order topological phase hosting corner states.
Our work shows how atomic quantum simulators can be harnessed to investigate novel strongly-correlated topological phenomena.
arXiv Detail & Related papers (2023-05-05T10:25:14Z) - Wave packet dynamics and edge transport in anomalous Floquet topological
phases [0.0]
An anomalous Floquet topological phase can in general generate more robust chiral edge motion than a Haldane phase.
Our results demonstrate that the rich interplay of wave packet dynamics and topological edge states can serve as a versatile tool in ultracold quantum gases in optical lattices.
arXiv Detail & Related papers (2023-02-16T18:45:49Z) - Tuning long-range fermion-mediated interactions in cold-atom quantum
simulators [68.8204255655161]
Engineering long-range interactions in cold-atom quantum simulators can lead to exotic quantum many-body behavior.
Here, we propose several tuning knobs, accessible in current experimental platforms, that allow to further control the range and shape of the mediated interactions.
arXiv Detail & Related papers (2022-03-31T13:32:12Z) - Localized vibrational modes in waveguide quantum optomechanics with
spontaneously broken PT symmetry [117.44028458220427]
We study theoretically two vibrating quantum emitters trapped near a one-dimensional waveguide and interacting with propagating photons.
In the regime of strong optomechanical interaction the light-induced coupling of emitter vibrations can lead to formation of spatially localized vibration modes, exhibiting parity-time symmetry breaking.
arXiv Detail & Related papers (2021-06-29T12:45:44Z) - Visualizing spinon Fermi surfaces with time-dependent spectroscopy [62.997667081978825]
We propose applying time-dependent photo-emission spectroscopy, an established tool in solid state systems, in cold atom quantum simulators.
We show in exact diagonalization simulations of the one-dimensional $t-J$ model that the spinons start to populate previously unoccupied states in an effective band structure.
The dependence of the spectral function on the time after the pump pulse reveals collective interactions among spinons.
arXiv Detail & Related papers (2021-05-27T18:00:02Z) - Qubit-photon bound states in topological waveguides with long-range
hoppings [62.997667081978825]
Quantum emitters interacting with photonic band-gap materials lead to the appearance of qubit-photon bound states.
We study the features of the qubit-photon bound states when the emitters couple to the bulk modes in the different phases.
We consider the coupling of emitters to the edge modes appearing in the different topological phases.
arXiv Detail & Related papers (2021-05-26T10:57:21Z) - Collective P-Wave Orbital Dynamics of Ultracold Fermions [0.0]
We consider the non-equilibrium orbital dynamics of spin-polarized ultracold fermions in the first excited band of an optical lattice.
A specific lattice depth and filling configuration is designed to allow the $p_x$ and $p_y$ excited orbital degrees of freedom to act as a pseudo-spin.
arXiv Detail & Related papers (2021-04-13T19:47:05Z) - Polarisation control of quasi-monochromatic XUV produced via resonant
high harmonic generation [0.0]
We study the resonant high harmonic generation by tin ions in an elliptically-polarised laser field.
We show that the drop of the resonant harmonic intensity with the fundamental field ellipticity is much slower than for high harmonics generated through the nonresonant mechanism.
arXiv Detail & Related papers (2021-02-09T19:01:25Z) - Ultrafast and Strong-Field Physics in Graphene-Like Crystals: Bloch Band
Topology and High-Harmonic Generation [0.0]
This letter introduces a theoretical framework for the nonperturbative electron dynamics in two-dimensional (2D) crystalline solids induced by the few-cycle and strong-field optical lasers.
In our theoretical experiment on 2D materials in the strong-field optical regime, we show that Bloch band topology and broken symmetry manifest themselves in several ways.
arXiv Detail & Related papers (2021-01-10T22:32:44Z) - Strong-field physics in three-dimensional topological insulators [0.0]
We focus on the process of non-perturbative high-order harmonic generation from the paradigmatic three-dimensional topological insulator bisselenide.
We analyze the contributions from the spin-orbit-coupled bulk states and the topological surface bands separately and reveal a major difference in how their harmonic yields depend on the ellipticity of the laser field.
arXiv Detail & Related papers (2020-08-04T01:24:00Z) - Hyperentanglement in structured quantum light [50.591267188664666]
Entanglement in high-dimensional quantum systems, where one or more degrees of freedom of light are involved, offers increased information capacities and enables new quantum protocols.
Here, we demonstrate a functional source of high-dimensional, noise-resilient hyperentangled states encoded in time-frequency and vector-vortex structured modes.
We generate highly entangled photon pairs at telecom wavelength that we characterise via two-photon interference and quantum state tomography, achieving near-unity visibilities and fidelities.
arXiv Detail & Related papers (2020-06-02T18:00:04Z)
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.