Cavity-mediated superthermal phonon correlations in the ultrastrong coupling regime
- URL: http://arxiv.org/abs/2409.04505v1
- Date: Fri, 6 Sep 2024 16:11:55 GMT
- Title: Cavity-mediated superthermal phonon correlations in the ultrastrong coupling regime
- Authors: Dasom Kim, Jin Hou, Geon Lee, Ayush Agrawal, Sunghwan Kim, Hao Zhang, Di Bao, Andrey Baydin, Wenjing Wu, Fuyang Tay, Shengxi Huang, Elbert E. M. Chia, Dai-Sik Kim, Minah Seo, Aditya D. Mohite, David Hagenmüller, Junichiro Kono,
- Abstract summary: We present a scheme for controlling the intensity fluctuations in phonon emission at room temperature based on multimode ultrastrong light--matter coupling.
The work paves the way for the tailoring of phonons to modify charge and energy transport in perovskite materials.
- Score: 10.947786129843402
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: Phonons, or vibrational quanta, are behind some of the most fundamental physical phenomena in solids, including superconductivity, Raman processes, and broken-symmetry phases. It is therefore of fundamental importance to find ways to harness phonons for controlling these phenomena and developing novel quantum technologies. However, the majority of current phonon control techniques rely on the use of intense external driving fields or strong anharmonicities, which restricts their range of applications. Here, we present a scheme for controlling the intensity fluctuations in phonon emission at room temperature based on multimode ultrastrong light--matter coupling. The multimode ultrastrong coupling regime is achieved by coupling two optical phonon modes in lead halide perovskites to an array of nanoslots, which operates as a single-mode cavity. The extremely small mode volume of the nanoslots enables unprecedented coupling strengths in a cavity phonon-polariton system. In the far-detuned, low-cavity-frequency regime, we demonstrate that the nanoslot resonator mediates an effective coupling between the phonon modes, resulting in superthermal phonon bunching in thermal equilibrium, both within the same mode and between different modes. Experimental results are in good agreement with a multimode Hopfield model. Our work paves the way for the tailoring of phonons to modify charge and energy transport in perovskite materials, with potential applications in light-collecting or emitting devices.
Related papers
- 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) - Entangling two exciton modes using exciton optomechanics [4.561414434532408]
We propose to entangle two exciton modes in an exciton-optomechanics system.
The protocol is within reach of current technology and may become a promising approach for preparing excitonic entanglement.
arXiv Detail & Related papers (2024-02-05T04:07:20Z) - Sculpting ultrastrong light-matter coupling through spatial matter
structuring [0.0]
We experimentally implement a novel strategy to sculpt ultrastrong multi-mode coupling.
We control the number of light-matter coupled modes, their octave-spanning frequency spectra, and their response to magnetic tuning.
This offers novel pathways for controlling dissipation, tailoring quantum light sources, nonlinearities, correlations, as well as entanglement in quantum information processing.
arXiv Detail & Related papers (2023-11-30T06:31:56Z) - Mode-multiplexing deep-strong light-matter coupling [0.0]
We show a new regime of record-strong light-matter interaction which exploits the cooperative dipole moments of multiple, highly non-resonant magnetoplasmon modes.
The extreme interaction drives strongly subcycle exchange of vacuum energy between multiple bosonic modes.
This offers avenues towards tailoring phase transitions by coupling otherwise non-interacting modes.
arXiv Detail & Related papers (2023-09-13T12:27:35Z) - Tuning photon-mediated interactions in a multimode cavity: from
supersolid to insulating droplets hosting phononic excitations [0.0]
We study supersolid and droplet states with phonon-like lattice excitations by coupling a Bose gas to longitudinal modes of a ring cavity.
The interplay between contact collisional and tunable-range cavity-mediated interactions leads to a rich phase diagram.
arXiv Detail & Related papers (2023-05-25T16:58:55Z) - Reservoir engineering strong quantum entanglement in cavity
magnomechanical systems [8.590363269272698]
We construct a hybrid cavity magnomechanical system to transfer the bipartite entanglements and achieve the strong microwave photon-phonon entanglement.
The scheme may provides potential applications for quantum information processing, and is expected to be extended to other three-mode systems.
arXiv Detail & Related papers (2022-06-29T02:12:55Z) - Driving Force and Nonequilibrium Vibronic Dynamics in Charge Separation
of Strongly Bound Electron-Hole Pairs [59.94347858883343]
We study the dynamics of charge separation in one, two and three-dimensional donor-acceptor networks.
This allows us to identify the precise conditions in which underdamped vibrational motion induces efficient long-range charge separation.
arXiv Detail & Related papers (2022-05-11T17:51:21Z) - A low-loss ferrite circulator as a tunable chiral quantum system [108.66477491099887]
We demonstrate a low-loss waveguide circulator constructed with single-crystalline yttrium iron garnet (YIG) in a 3D cavity.
We show the coherent coupling of its chiral internal modes with integrated superconducting niobium cavities.
We also probe experimentally the effective non-Hermitian dynamics of this system and its effective non-reciprocal eigenmodes.
arXiv Detail & Related papers (2021-06-21T17:34:02Z) - Deterministic single-atom source of quasi-superradiant $N$-photon pulses [62.997667081978825]
Scheme operates with laser and cavity fields detuned from the atomic transition by much more than the excited-state hyperfine splitting.
This enables reduction of the dynamics to that of a simple, cavity-damped Tavis-Cummings model with the collective spin determined by the total angular momentum of the ground hyperfine level.
arXiv Detail & Related papers (2020-12-01T03:55:27Z) - Multimode-polariton superradiance via Floquet engineering [55.41644538483948]
We consider an ensemble of ultracold bosonic atoms within a near-planar cavity, driven by a far detuned laser.
We show that a strong, dispersive atom-photon coupling can be reached for many transverse cavity modes at once.
The resulting Floquet polaritons involve a superposition of a set of cavity modes with a density of excitation of the atomic cloud.
arXiv Detail & Related papers (2020-11-24T19:00:04Z) - Waveguide Bandgap Engineering with an Array of Superconducting Qubits [101.18253437732933]
We experimentally study a metamaterial made of eight superconducting transmon qubits with local frequency control.
We observe the formation of super- and subradiant states, as well as the emergence of a polaritonic bandgap.
The circuit of this work extends experiments with one and two qubits towards a full-blown quantum metamaterial.
arXiv Detail & Related papers (2020-06-05T09:27:53Z)
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.