Quantum control via chirped coherent anti-Stokes Raman spectroscopy

• URL: http://arxiv.org/abs/2212.08258v1
• Date: Fri, 16 Dec 2022 03:08:05 GMT
• Title: Quantum control via chirped coherent anti-Stokes Raman spectroscopy
• Authors: Jabir Chathanathil, Dmitry Budker, Svetlana A. Malinovskaya
• Abstract summary: C-CARS is a chirped-pulse quantum control scheme for Coherent Anti-Stokes Raman Scattering spectroscopy. It implies chirping of three incoming pulses in the four-wave mixing process of CARS, the pump, the Stokes and the probe. The robustness, spectral selectivity and adiabatic nature of this method are helpful in improving the existing methods of CARS spectroscopy.
• Score: 0.0
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: A chirped-pulse quantum control scheme applicable to Coherent Anti-Stokes Raman Scattering spectroscopy, named as C-CARS, is presented aimed at maximizing the vibrational coherence in molecules. It implies chirping of three incoming pulses in the four-wave mixing process of CARS, the pump, the Stokes and the probe, to fulfil the conditions of adiabatic passage. The scheme is derived in the framework of rotating wave approximation and adiabatic elimination of excited state manifold simplifying the four-level model system into a ``super-effective'' two level system. The robustness, spectral selectivity and adiabatic nature of this method are helpful in improving the existing methods of CARS spectroscopy for sensing, imaging and detection. We also show that the selectivity of excitation of vibrational degrees of freedom can be controlled by carefully choosing the spectral chirp rate of the pulses.

Related papers

• Spatio-spectral control of spontaneous emission [0.0]
  We study the dynamics of atom-vortex beam light interactions with optical vortices carrying orbital angular momentum (OAM) Our findings shed light on the dynamics of atom-vortex beam light interactions and offer insights into the manipulation of emission properties at the quantum level.
  arXiv  Detail & Related papers  (2024-08-22T19:36:41Z)
• Coherent Control of an Optical Quantum Dot Using Phonons and Photons [5.1635749330879905]
  We describe unique features and advantages of optical two-level systems, or qubits, for optomechanics. The qubit state can be coherently controlled using both phonons and resonant or detuned photons. Time-correlated single-photon counting measurements reveal the control of QD population dynamics.
  arXiv  Detail & Related papers  (2024-04-02T16:25:35Z)
• Chirped Pulse Control of Raman Coherence in Atoms and Molecules [0.0]
  A novel chirped pulse control scheme is presented based on Coherent Anti-Stokes Raman spectroscopy. The robustness, spectral selectivity and adiabatic nature of C-CARS method may prove useful for sensing, imaging, and detection.
  arXiv  Detail & Related papers  (2023-09-03T17:40:20Z)
• Controlled excitation of rotons in superfluid helium with an optical centrifuge [77.34726150561087]
  We show that the orientation of the angular momentum transferred from the laser field to the rotons, is dictated by the centrifuge. The observed decay of the coherent Raman signal suggests that the decoherence is governed by the scattering on thermal rotons and phonons.
  arXiv  Detail & Related papers  (2023-06-02T23:30:03Z)
• 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)
• Quantum-enhanced absorption spectroscopy with bright squeezed frequency combs [91.3755431537592]
  We propose a strategy combining the advantages of frequency modulation spectroscopy with the reduced noise properties accessible by squeezing the probe state. A homodyne detection scheme allows the simultaneous measurement of the absorption at multiple frequencies. We predict a significant enhancement of the signal-to-noise ratio that scales exponentially with the squeezing factor.
  arXiv  Detail & Related papers  (2022-09-30T17:57:05Z)
• Coherence limitations in the optical control of the singlet-triplet qubit in a quantum dot molecule [0.0]
  We analyze the dynamics of a qubit implemented on a singlet-triplet subspace of two-electron states in a self-assembled quantum dot molecule. We quantitatively characterize the imperfections of the qubit operation resulting from non-adiabatic evolution and from limited spectral selectivity in a real system. We are able to identify the optimization trade-offs between different sources of errors and indicate the most favorable conditions for quantum control of the singlet-triplet qubit in the two optical control schemes.
  arXiv  Detail & Related papers  (2022-02-28T16:49:18Z)
• 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)
• Simulation of absorption spectra of molecular aggregates: a Hierarchy of Stochastic Pure States approach [68.8204255655161]
  hierarchy of pure states (HOPS) provides a formally exact solution based on local, trajectories. Exploiting the localization of HOPS for the simulation of absorption spectra in large aggregares requires a formulation in terms of normalized trajectories.
  arXiv  Detail & Related papers  (2021-11-01T16:59:54Z)
• Two-photon resonance fluorescence of two interacting non-identical quantum emitters [77.34726150561087]
  We study a system of two interacting, non-indentical quantum emitters driven by a coherent field. We show that the features imprinted by the two-photon dynamics into the spectrum of resonance fluorescence are particularly sensitive to changes in the distance between emitters. This can be exploited for applications such as superresolution imaging of point-like sources.
  arXiv  Detail & Related papers  (2021-06-04T16:13:01Z)
• Coherent Dynamics in Quantum Emitters under Dichromatic Excitation [0.0]
  We characterize the coherent dynamics of a two-level quantum emitter driven by a pair of symmetrically-detuned phase-locked pulses. The promise of dichromatic excitation is to spectrally isolate the excitation laser from the quantum emission, enabling background-free photon extraction from the emitter.
  arXiv  Detail & Related papers  (2020-09-04T11:52:39Z)

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.