Quantum interference control of perfect photon absorption in a three-level atom-cavity system

• URL: http://arxiv.org/abs/2105.14498v1
• Date: Sun, 30 May 2021 11:02:55 GMT
• Title: Quantum interference control of perfect photon absorption in a three-level atom-cavity system
• Authors: Miaodi Guo
• Abstract summary: We analyze a scheme for controlling coherent photon absorption by cavity electromagnetically induced transparency (EIT) in a three-level atom-cavity system. Coherent perfect absorption (CPA) can occur when time-reversed symmetry of lasing process is obtained and destructive interference happens at the cavity interfaces.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: We analyze a scheme for controlling coherent photon absorption by cavity electromagnetically induced transparency (EIT) in a three-level atom-cavity system. Coherent perfect absorption (CPA) can occur when time-reversed symmetry of lasing process is obtained and destructive interference happens at the cavity interfaces. Generally, the frequency range of CPA is dependent on the decay rates of cavity mirrors. When the control laser is settled, the smaller cavity decay rate causes the wider frequency range of CPA, and the input intensity is larger to satisfy CPA condition for a given frequency. While the cavity parameters are determined, Rabi frequency of the control laser has little effect on the frequency range of CPA. However, with EIT-type quantum interference, the CPA mode is tunable by the control laser. This means the CPA with given frequency and intensity of an input laser can be manipulated as the coherent non-perfect absorption (CNPA). Moreover, with the relative phase of input probe lasers, the probe fields can be perfectly transmitted and/or reflected. Therefore, the system can be used as a controllable coherent perfect absorber or transmitter and/or reflector, and our work may have practical applications in optical logic devices.

Related papers

• Continuous and Reversible Electrical Tuning of Fluorescent Decay Rate via Fano Resonance [2.3592914313389253]
  An auxiliary quantum object (QO) can introduce a Fano transparency in the plasmonic spectrum of a metal-shell nanoparticles. We show that an auxiliary QO, located at the hotspot of the CSNP, can modify the LDOS, hence the decay rate of an excited dipole. This phenomenon emerges as an invaluable tool to implement in integrated quantum technologies.
  arXiv  Detail & Related papers  (2024-12-28T16:20:19Z)
• Spectrally-Pure Optical Serrodyne Modulation for Continuously-Tunable Laser Offset Locking [37.69303106863453]
  We show an optical frequency offset (OFO) of continuous-wave laser light by serrodyne modulation using a fiber EOM and radio-frequency (RF) tones from a commodity RF system on a chip. The utility of this tool is demonstrated by continuously shifting the offset of a cavity-locked laser from 50 to 1600 MHz.
  arXiv  Detail & Related papers  (2024-12-06T20:40:18Z)
• In-situ-tunable spin-spin interactions in a Penning trap with in-bore optomechanics [41.94295877935867]
  We present an optomechanical system for in-situ tuning of the coherent spin-motion and spin-spin interaction strength. We characterize the system using measurements of the induced mean-field spin precession. These experiments show approximately a $times2$ variation in the ratio of the coherent to incoherent interaction strength.
  arXiv  Detail & Related papers  (2024-01-31T11:00:39Z)
• Controlling all Degrees of Freedom of the Optical Coupling in Hybrid Quantum Photonics [35.759786254573896]
  We develop a hybrid approach based on negatively-charged silicon-vacancy center in nanodiamonds coupled to a mode of a Si$_3$N$_4$-photonic crystal cavity. We use the frequency of coherent Rabi-oscillations and line-broadening as a measure of the device performance.
  arXiv  Detail & Related papers  (2023-10-26T07:26:27Z)
• Squeezing for Broadband Multidimensional Variational Measurement [55.2480439325792]
  We show that optical losses inside cavity restrict back action exclusion due to loss noise. We analyze how two-photon (nondegenerate) and conventional (degenerate) squeezing improve sensitivity with account optical losses.
  arXiv  Detail & Related papers  (2023-10-06T18:41:29Z)
• Hyper-entanglement between pulse modes and frequency bins [101.18253437732933]
  Hyper-entanglement between two or more photonic degrees of freedom (DOF) can enhance and enable new quantum protocols. We demonstrate the generation of photon pairs hyper-entangled between pulse modes and frequency bins.
  arXiv  Detail & Related papers  (2023-04-24T15:43:08Z)
• Tunable nonlinear coherent perfect absorption and reflection in cavity QED [0.0]
  We propose and analyze a scheme for realizing tunable coherent perfect absorption (CPA) and reflection (CPR) in a three-level $Lambda$-type atom-cavity system. With EIT-type interference induced by a coherent coupling laser, the scheme provides a new method of attaining tunable near CPR at two-photon resonance.
  arXiv  Detail & Related papers  (2022-06-06T08:26:21Z)
• Controlling mode orientations and frequencies in levitated cavity optomechanics [0.0]
  coherent-scattering (CS) set-up allows quantum ground state cooling of a levitated nanoparticles. We demonstrate experimentally that it is possible to strongly cavity cool and control the em unperturbed modes. Findings have implications for directional force sensing using CS set-ups.
  arXiv  Detail & Related papers  (2022-04-20T17:07:31Z)
• Highly sensitive controllability of optical bistability in three-level atomic systems [0.0]
  We theoretically investigate the optical bistability phenomenon in an ensemble of $N$ non-interacting three-level atoms trapped inside an optical cavity. The atoms are in a $Lambda$-level configuration, where one atomic transition is coupled by a cavity mode, while the other one is coupled by a classical field.
  arXiv  Detail & Related papers  (2022-01-20T14:03:43Z)
• Controllable optical bistability with perfect photon absorption [0.0]
  We propose a scheme for controlling nonlinear coherent perfect absorption (CPA) in a three-level Lambda-type atom-cavity system. For the bistable CPA, the highest output-input ratio of the high stable state and the low stable state is approximately 1, and the bistable region is controllable with the control field.
  arXiv  Detail & Related papers  (2021-10-31T08:05:12Z)
• Superradiance in dynamically modulated Tavis-Cumming model with spectral disorder [62.997667081978825]
  Superradiance is the enhanced emission of photons from quantum emitters collectively coupling to the same optical mode. We study the interplay between superradiance and spectral disorder in a dynamically modulated Tavis-Cummings model.
  arXiv  Detail & Related papers  (2021-08-18T21:29:32Z)

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.