Magnetic-field-induced cavity protection for intersubband polaritons
- URL: http://arxiv.org/abs/2210.08026v1
- Date: Fri, 14 Oct 2022 18:00:03 GMT
- Title: Magnetic-field-induced cavity protection for intersubband polaritons
- Authors: Daniele De Bernardis, Mathieu Jeannin, Jean-Michel Manceau, Raffaele
Colombelli, Alessandro Tredicucci, and Iacopo Carusotto
- Abstract summary: We analyse the effect of a strong perpendicular magnetic field on an intersubband transition in a disordered doped quantum well strongly coupled to an optical cavity.
The magnetic field changes the lineshape of the intersubband optical transition due to the roughness of the interface of the quantum well from a Lorentzian to a Gaussian one.
- Score: 52.77024349608834
- License: http://creativecommons.org/licenses/by/4.0/
- Abstract: We analyse the effect of a strong perpendicular magnetic field on an
intersubband transition in a disordered doped quantum well strongly coupled to
an optical cavity. The magnetic field changes the lineshape of the intersubband
optical transition due to the interface roughness of the quantum well from a
Lorentzian to a Gaussian one. In this regime, a novel form of
magnetic-field-induced cavity protection sets in, which strongly reduces the
polariton linewidth to the cavity contribution only. Implications of our
results for fundamental studies of nonlinear polariton dynamics and for
technological applications to polariton lasers are finally highlighted.
Related papers
- Antiferromagnetic Quantum Anomalous Hall Effect Modulated by Spin Flips and Flops [23.17305544412557]
We fabricate a device of 7-septuple-layer MnBi2Te4 covered with AlOx capping layer.
We uncover a cascade of quantum phase transitions that can be attributed to the influence of spin configurations on charge transport.
The versatile tunability of the quantum anomalous Hall effect in MnBi2Te4 paves the way for potential applications in topological antiferromagnetic spintronics.
arXiv Detail & Related papers (2024-05-14T15:08:07Z) - Ferrimagnetism of ultracold fermions in a multi-band Hubbard system [34.95884242542007]
We report on signatures of a ferrimagnetic state realized in a Lieb lattice at half-filling.
We demonstrate its robustness when increasing repulsive interactions from the non-interacting to the Heisenberg regime.
Our work paves the way towards exploring exotic phases in related multi-orbital models such as quantum spin liquids in kagome lattices and heavy fermion behavior in Kondo models.
arXiv Detail & Related papers (2024-04-26T17:33:26Z) - Ultrafast dynamics of a fermion chain in a terahertz field-driven
optical cavity [0.0]
We study the effect of a terahertz field-driven single cavity mode for ultrafast control of a fermion chain with dissipation-induced nonlinearity.
We show that sufficiently strong photon loss from the cavity eliminates the polaritons and the associated phase transition.
arXiv Detail & Related papers (2024-02-19T23:08:12Z) - All-optical measurement of magnetic fields for quantum gas experiments [0.0]
We present an all-optical method to measure and compensate for residual magnetic fields present in a cloud of ultracold atoms.
Our approach leverages the increased loss from the trapped atomic sample through electromagnetically induced absorption.
Modulating the excitation laser provides coherent sidebands, resulting in Lambda-type pump-probe scheme.
arXiv Detail & Related papers (2023-11-14T19:42:16Z) - Resolving Fock states near the Kerr-free point of a superconducting
resonator [51.03394077656548]
We have designed a tunable nonlinear resonator terminated by a SNAIL (Superconducting Asymmetric Inductive eLement)
We have excited photons near this Kerr-free point and characterized the device using a transmon qubit.
arXiv Detail & Related papers (2022-10-18T09:55:58Z) - High-resolution spectroscopy of a single nitrogen-vacancy defect at zero
magnetic field [0.3848364262836075]
We report a study of high-resolution microwave spectroscopy of nitrogen-vacancy centers in diamond crystals at and around zero magnetic field.
We observe characteristic splitting and transition imbalance of the hyperfine transitions, which originate from level anti-crossings in the presence of a transverse effective field.
Our results are of importance for the optimization of the experimental conditions for the polarization-selective microwave excitation of spin-1 systems in zero or weak magnetic fields.
arXiv Detail & Related papers (2022-06-30T02:49:49Z) - A hybrid ferromagnetic transmon qubit: circuit design, feasibility and
detection protocols for magnetic fluctuations [45.82374977939355]
We show that the characteristic hysteretic behavior of the ferromagnetic barrier provides an alternative and intrinsically digital tuning of the qubit frequency by means of magnetic field pulses.
The possibility to use the qubit as a noise detector and its relevance to investigate the subtle interplay of magnetism and superconductivity is envisaged.
arXiv Detail & Related papers (2022-06-01T18:50:26Z) - Multi-Center Magnon Excitations Open the Entire Brillouin Zone to
Terahertz Magnetometry of Quantum Magnets [42.72559625804617]
The magnon density of states can be accessed over the entire Brillouin zone through three-center magnon excitations.
The results of THz time-domain experiments agree remarkably well with linear spin-wave theory.
arXiv Detail & Related papers (2022-03-08T19:04:24Z) - Synthetic gauge potentials for the dark state polaritons in atomic media [0.0]
We propose an optical scheme to generate effective gauge potentials for stationary-light polaritons.
Our scheme paves a novel way towards the investigation of the bosonic analogue of the fractional quantum Hall effect by electromagnetically induced transparency.
arXiv Detail & Related papers (2021-04-22T13:06:22Z) - Cavity-induced exciton localisation and polariton blockade in
two-dimensional semiconductors coupled to an electromagnetic resonator [0.0]
Recent experiments have demonstrated strong light-matter coupling between electromagnetic nanoresonators and pristine sheets of two-dimensional semiconductors.
We present a first-principles microscopic quantum theory for the interaction between excitons in an infinite sheet of two-dimensional material and a localised electromagnetic resonator.
We predict that polariton blockade due to nonlinear exciton-exciton interactions is well within reach for nanoresonators coupled to transition-metal dichalcogenides.
arXiv Detail & Related papers (2021-03-26T14:16:34Z)
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.