A nonlinear frequency shift caused by asymmetry of the coherent population trapping resonance: a generalization

• URL: http://arxiv.org/abs/2311.17229v1
• Date: Tue, 28 Nov 2023 21:05:34 GMT
• Title: A nonlinear frequency shift caused by asymmetry of the coherent population trapping resonance: a generalization
• Abstract summary: We investigate the coherent population trapping resonance induced by a polychromatic optical field with an asymmetric spectrum. In a general case, the frequencies of the signals nonlinearly depend on the optical field's intensity due to the asymmetry of the resonance.
• Score: 0.0
• License: http://creativecommons.org/licenses/by-nc-sa/4.0/
• Abstract: We investigate the coherent population trapping resonance induced by a polychromatic optical field with an asymmetric spectrum, i.e., whose sidebands equidistant from the carrier have unequal powers. A situation is considered where a modulation is used to provide the so-called in-phase and quadrature signals in the optical field's transmission, which are used for stabilization of the local oscillator's frequency in chip-scale atomic clocks. In a general case, the frequencies of the signals nonlinearly depend on the optical field's intensity due to the asymmetry of the resonance. In this work, we demonstrate a) that this effect stems from a multi-peak structure of the resonance; b) a linear dependence of the frequency on the optical field's intensity at high modulation values; c) that the regime of the resolved structure has more advantages than suppression of the frequency shift due to the spectrum asymmetry.

Related papers

• Analysis of the frequency shift in coherent population trapping resonance's dynamic continuous-wave spectroscopy at the phase-jump modulation and its comparison with the conventional approach [0.0]
  We present the research of dynamic continuous-wave spectroscopy of the coherent population trapping resonance at the phase-jump modulation.<n>We demonstrate that the asymmetry leads to an additional nonlinear shift of the error-signal frequency under unisotropic relaxation of the ground-state density-matrix elements.
  arXiv  Detail & Related papers  (2026-06-22T20:14:40Z)
• Investigating Spectral Dynamics and Spin Signatures of a Mechanically Isolated Quantum Emitter in hBN [70.39382957795658]
  Mechanically isolated defect centers in hexagonal boron nitride are promising coherent quantum emitters.<n>We investigate a single mechanically isolated quantum emitter in hBN integrated onto a coplanar waveguide.
  arXiv  Detail & Related papers  (2026-04-16T13:24:11Z)
• Frequency Comb Behavior of Time Crystals in an RF-Driven Dissipative Rydberg System [0.0]
  Driven nonlinear oscillators constitute a universal paradigm for understanding synchronization, frequency pulling, and frequency comb formation in nonequilibrium systems.<n>Here, we realize such an emergent nonlinear oscillator in strongly interacting cesium Rydberg vapor, where coherent optical excitation, dissipation, and long-range interactions give rise to a driven-dissipative time crystal phase with intrinsic oscillation.<n>Under RF heterodyne conditions, we observe intermodulation, frequency pulling, and, at strong drive, the emergence of a comb-like spectrum in the atomic coherence.
  arXiv  Detail & Related papers  (2026-03-12T17:04:15Z)
• Persistent subradiant correlations in a random driven Dicke model [49.1574468325115]
  We study theoretically the driven-dissipative dynamics of an array of two-level emitters, coupled to a single photonic mode, in the presence of disorder in the resonant frequencies.<n>We introduce the notion of subradiant correlations in the dynamics, corresponding to the eigenstates of the Liouvillian with a low decay rate, that can also oscillate in time.
  arXiv  Detail & Related papers  (2025-07-25T17:53:56Z)
• Synthetic crystal rotation with spacetime metamaterials [49.1574468325115]
  We investigate light-matter interaction regimes accessed by synthetically rotating crystals.<n>Our results highlight the qualitatively different light-matter interaction regimes accessed by synthetically rotating crystals.
  arXiv  Detail & Related papers  (2025-06-03T06:20:27Z)
• Time-dependent fluorescence by incoherently pumped polar quantum dot driven by a low-frequency monochromatic field [0.0]
  We studied time-dependent features of high-frequency fluorescent radiation from a two-level quantum system with broken inversion spatial symmetry. The system in question was modelled after a one-electron two-level asymmetric polar semiconductor quantum dot.
  arXiv  Detail & Related papers  (2024-12-15T17:07:56Z)
• Driven generalized quantum Rayleigh-van der Pol oscillators: Phase localization and spectral response [0.0]
  This work considers the classically driven generalized quantum Rayleigh-van der Pol oscillator. Two non-linear terms break the rotational phase space symmetry, Wigner distribution of quantum mechanical limit cycle state is not rotationally symmetric. Phase localization and frequency entrainment, which are required for synchronization, are discussed in detail. Several observables are found to exhibit the analog of the celebrated classical Arnold tongue.
  arXiv  Detail & Related papers  (2024-01-08T11:19:51Z)
• Reminiscence of classical chaos in driven transmons [117.851325578242]
  We show that even off-resonant drives can cause strong modifications to the structure of the transmon spectrum rendering a large part of it chaotic. Results lead to a photon number threshold characterizing the appearance of chaos-induced quantum demolition effects.
  arXiv  Detail & Related papers  (2022-07-19T16:04:46Z)
• Robust, Nonparametric, Efficient Decomposition of Spectral Peaks under Distortion and Interference [0.0]
  We propose a decomposition method for the spectral peaks in an observed frequency spectrum, which is efficiently acquired by utilizing the Fast Fourier Transform. We model the peaks in spectrum as pseudo-symmetric functions, where the only constraint is a nonincreasing behavior around a central frequency when the distance increases. Our approach is more robust against arbitrary distortion, interference and noise on the spectrum that may be caused by an observation system.
  arXiv  Detail & Related papers  (2022-04-18T17:08:37Z)
• Dynamics of Transmon Ionization [94.70553167084388]
  We numerically explore the dynamics of a driven transmon-resonator system under strong and nearly resonant measurement drives. We find clear signatures of transmon ionization where the qubit escapes out of its cosine potential.
  arXiv  Detail & Related papers  (2022-03-21T18:00:15Z)
• Frequency combs with parity-protected cross-correlations from dynamically modulated qubit arrays [117.44028458220427]
  We develop a general theoretical framework to dynamically engineer quantum correlations in the frequency-comb emission from an array of superconducting qubits in a waveguide. We demonstrate, that when the resonance of the two qubits are periodically modulated with a $pi$ phase shift, it is possible to realize simultaneous bunching and antibunching in cross-correlations of the scattered photons from different sidebands.
  arXiv  Detail & Related papers  (2022-03-01T13:12:45Z)
• Fano Resonances in Quantum Transport with Vibrations [50.591267188664666]
  Quantum mechanical scattering continuum states coupled to a scatterer with a discrete spectrum gives rise to Fano resonances. We consider scatterers that possess internal vibrational degrees of freedom in addition to discrete states.
  arXiv  Detail & Related papers  (2021-08-07T12:13:59Z)
• Tailored optical properties of atomic medium by a narrow bandwidth frequency comb [0.3058685580689604]
  The quantum interference assisted enhanced optical activity due to the emergence of a steady-state atomic polarization is investigated. The Rubidium atoms in an antirelaxation coated cell provide a suitable platform to address the phenomena at multiple Larmors frequencies.
  arXiv  Detail & Related papers  (2021-03-16T05:42:53Z)
• Intensity nonlinearity of the error-signal frequency shift in the modulation spectroscopy of dark resonances and approaches to its reduction [0.0]
  We consider the double $Lambda$-system of levels interacting with the asymmetric polychromatic optical field to demonstrate that this effect arises due to intensity nonlinearity of the error-signal frequency shift.
  arXiv  Detail & Related papers  (2020-12-26T13:13:15Z)
• Frequency-resolved photon correlations in cavity optomechanics [58.720142291102135]
  We analyze the frequency-resolved correlations of the photons being emitted from an optomechanical system. We discuss how the time-delayed correlations can reveal information about the dynamics of the system. This enriched understanding of the system can trigger new experiments to probe nonlinear phenomena in optomechanics.
  arXiv  Detail & Related papers  (2020-09-14T06:17:36Z)
• Variational approach to time-dependent fluorescence of a driven qubit [7.8094190319190275]
  We study time-dependent fluorescence spectra of a driven qubit in the weak to strong qubit-reservoir coupling regimes. Our method agrees well with the time-local master-equation approach in the weak-coupling regime. Our formalism provides a unique perspective to interpret time-dependent spectra.
  arXiv  Detail & Related papers  (2020-08-22T01:33:35Z)
• Microwave multiphoton conversion via coherently driven permanent dipole systems [68.8204255655161]
  We investigate a leaking single-mode quantized cavity field coupled with a resonantly driven two-level system possessing permanent dipoles. The frequencies of the interacting subsystems are being considered very different, e.g., microwave ranges for the cavity and optical domains for the frequency of the two-level emitter, respectively.
  arXiv  Detail & Related papers  (2020-08-12T16:20:44Z)

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.