Photonic Spin Hall Effect in a Four-Level Coherent Control Scheme within Cavity QED

• URL: http://arxiv.org/abs/2411.17256v1
• Date: Tue, 26 Nov 2024 09:31:43 GMT
• Title: Photonic Spin Hall Effect in a Four-Level Coherent Control Scheme within Cavity QED
• Authors: Muzamil Shah, Shahid Qamar, Muhammad Waseem,
• Abstract summary: Investigation of the manipulation of the photonic spin Hall effect (PSHE) using a four-level closed coherent control scheme in cavity quantum electrodynamics (QED) $Lambda$-type system exhibits PSHE similar to the CTL system, showing enhanced PSHE due to zero absorption and dispersion. Control field strengths and atomic density show no influence on PSHE.
• Score: 1.4657502202360773
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: This paper investigates the manipulation of the photonic spin Hall effect (PSHE) using a four-level closed coherent control coupling scheme in cavity quantum electrodynamics (QED). The atomic system is configured to function as a combined Tripod and $\Lambda$ (CTL), or $\Lambda$, or $N$ level model by manipulating the control field strengths and their relative phases. The system demonstrates multiple transparency windows in the CTL configuration, allowing the tunable PSHE over the wider range of probe field detuning. At probe field resonance, the $\Lambda$-type system exhibits PSHE similar to the CTL system, showing enhanced PSHE due to zero absorption and dispersion. Control field strengths and atomic density show no influence on PSHE. Our findings reveal that atomic density and strength of control fields significantly influence PSHE in the $N$-type model at resonance, offering additional control parameters for PSHE manipulation. The results are equally valid and applicable to direct $\Lambda$-type and N-type atomic systems, making the findings broadly relevant in cavity QED. The demonstrated tunability via probe field detuning, control fields, and atomic density paves the way for advanced optical control and enhanced precision in cavity QED 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)
• Site-Controlled Purcell-Induced Bright Single Photon Emitters in Hexagonal Boron Nitride [62.170141783047974]
  Single photon emitters hosted in hexagonal boron nitride (hBN) are essential building blocks for quantum photonic technologies that operate at room temperature. We experimentally demonstrate large-area arrays of plasmonic nanoresonators for Purcell-induced site-controlled SPEs. Our results offer arrays of bright, heterogeneously integrated quantum light sources, paving the way for robust and scalable quantum information systems.
  arXiv  Detail & Related papers  (2024-05-03T23:02:30Z)
• Donor-Acceptor Pairs in Wide-Bandgap Semiconductors for Quantum Technology Applications [38.9306189220547]
  We investigate the electronic structure and interactions of donor-acceptor pairs (DAPs) formed by various point defects in diamond and silicon carbide (SiC) We show that polarization differences between ground and excited states lead to unusually large electric dipole moments for several DAPs in diamond and SiC. We predict radiative lifetimes and photoluminescence spectra for selected substitutional atoms and show that while B-N pairs in diamond are challenging to control due to their large electron-phonon coupling, DAPs in SiC, especially Al-N pairs, are suitable candidates to realize long-range optically controllable interactions
  arXiv  Detail & Related papers  (2023-05-09T22:45:13Z)
• 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)
• Multiple electromagnetically induced transparency without a control field in an atomic array coupled to a waveguide [0.0]
  We investigate multiple electromagnetically induced transparency (EIT) in a waveguide quantum electrodynamics (wQED) system containing an atom array. We find that in terms of the single-excitation collective states, a properly designed $N$-atom array can be mapped into a driven ($N+1$)-level system that can produce multiple EIT-type phenomenon. The most significant feather of this type of EIT scheme is control-field-free, which may provide an alternative way to produce EIT-like phenomenon in wQED system when external control fields are not available.
  arXiv  Detail & Related papers  (2022-10-02T15:04:09Z)
• Wigner-molecularization-enabled dynamic nuclear field programming [2.545763876632975]
  We show efficient control of spin transfer between an artificial three-electron WM and the nuclear environment in a GaAs double QD. We confirm the multiplet spin structure of a WM, paving the way for active control of newly emerging correlated electron states for application in mesoscopic environment engineering.
  arXiv  Detail & Related papers  (2022-07-24T04:14:16Z)
• Electromagnetically induced transparency in inhomogeneously broadened divacancy defect ensembles in SiC [52.74159341260462]
  Electromagnetically induced transparency (EIT) is a phenomenon that can provide strong and robust interfacing between optical signals and quantum coherence of electronic spins. We show that EIT can be established with high visibility also in this material platform upon careful design of the measurement geometry. Our work provides an understanding of EIT in multi-level systems with significant inhomogeneities, and our considerations are valid for a wide array of defects in semiconductors.
  arXiv  Detail & Related papers  (2022-03-18T11:22:09Z)
• Composite picosecond control of atomic state through a nanofiber interface [2.0765679900082934]
  Composite picosecond optical pulses with optimally tailored phases are able to control the atomic electric dipole transitions nearly perfectly. This unprecedented ability would allow error-resilient atomic spectroscopy and open up novel nonlinear quantum optical research with atom-nanophotonic interfaces.
  arXiv  Detail & Related papers  (2022-03-13T17:13:10Z)
• Nearly-Resonant Crystalline-Phononic Coupling in Quantum Spin Liquid Candidate CsYbSe$_2$ [48.30279211143264]
  CsYbSe$$, a recently identified quantum spin liquid (QSL) candidate, exhibits strong crystal electric field excitations. We identify phonon and CEF modes with Raman spectroscopy and observe strong CEF-phonon mixing resulting in a vibronic bound state.
  arXiv  Detail & Related papers  (2021-11-06T17:00:34Z)
• Controlled-Phase Gate by Dynamic Coupling of Photons to a Two-Level Emitter [0.0]
  We propose an architecture for achieving high-fidelity deterministic quantum logic gates on dual-rail encoded photonic qubits. We show that III-V quantum dots in GaAs membranes is a promising platform for photonic quantum information processing.
  arXiv  Detail & Related papers  (2021-10-06T18:00:00Z)
• Demonstration of electron-nuclear decoupling at a spin clock transition [54.088309058031705]
  Clock transitions protect molecular spin qubits from magnetic noise. linear coupling to nuclear degrees of freedom causes a modulation and decay of electronic coherence. An absence of quantum information leakage to the nuclear bath provides opportunities to characterize other decoherence sources.
  arXiv  Detail & Related papers  (2021-06-09T16:23:47Z)
• Optimal control of a nitrogen-vacancy spin ensemble in diamond for sensing in the pulsed domain [52.77024349608834]
  Defects in solid state materials provide an ideal platform for quantum sensing. Control of such an ensemble is challenging due to the spatial variation in both the defect energy levels and in any control field across a macroscopic sample. We experimentally demonstrate that we can overcome these challenges using Floquet theory and optimal control optimization methods.
  arXiv  Detail & Related papers  (2021-01-25T13:01:05Z)
• Spectrally multimode integrated SU(1,1) interferometer [50.591267188664666]
  The presented interferometer includes a polarization converter between two photon sources and utilizes a continuous-wave (CW) pump. We show that this configuration results in almost perfect destructive interference at the output and supersensitivity regions below the classical limit.
  arXiv  Detail & Related papers  (2020-12-07T14:42:54Z)

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.