Optomechanical Effects in Nanocavity-enhanced Resonant Raman Scattering
of a Single Molecule
- URL: http://arxiv.org/abs/2210.02639v1
- Date: Thu, 6 Oct 2022 02:12:07 GMT
- Title: Optomechanical Effects in Nanocavity-enhanced Resonant Raman Scattering
of a Single Molecule
- Authors: Xuan-Ming Shen, Yuan Zhang, Shunping Zhang, Yao Zhang, Qiu-Shi Meng,
Guangchao Zheng, Siyuan Lv, Luxia Wang, Roberto A. Boto, Chongxin Shan,
Javier Aizpurua
- Abstract summary: We address the optomechanical effects in surface-enhanced resonant Raman scattering (SERRS) from a single molecule in a nano-particle on mirror (NPoM) nanocavity.
We develop a quantum master equation theory, which combines macroscopic quantum electrodynamics and electron-vibration interaction within the framework of open quantum system theory.
We use electromagnetic simulations and time-dependent density functional theory calculations to study the SERRS of a methylene blue molecule in a realistic NPoM nanocavity.
- Score: 7.8701096149524865
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: In this article, we address the optomechanical effects in surface-enhanced
resonant Raman scattering (SERRS) from a single molecule in a nano-particle on
mirror (NPoM) nanocavity by developing a quantum master equation theory, which
combines macroscopic quantum electrodynamics and electron-vibration interaction
within the framework of open quantum system theory. We supplement the theory
with electromagnetic simulations and time-dependent density functional theory
calculations in order to study the SERRS of a methylene blue molecule in a
realistic NPoM nanocavity. The simulations allow us not only to identify the
conditions to achieve conventional optomechanical effects, such as vibrational
pumping, non-linear scaling of Stokes and anti-Stokes scattering, but also to
discovery distinct behaviors, such as the saturation of exciton population, the
emergence of Mollow triplet side-bands, and higher-order Raman scattering. All
in all, our study might guide further investigations of optomechanical effects
in resonant Raman scattering.
Related papers
- A Theory of Quantum Jumps [44.99833362998488]
We study fluorescence and the phenomenon of quantum jumps'' in idealized models of atoms coupled to the quantized electromagnetic field.
Our results amount to a derivation of the fundamental randomness in the quantum-mechanical description of microscopic systems.
arXiv Detail & Related papers (2024-04-16T11:00:46Z) - Quantum-induced Stochastic Optomechanical Dynamics [0.0]
Quantum fluctuations lead to state-dependent non-equilibrium noise, which is exponentially enhanced by wavepacket delocalization.
For the case of nanoparticles coupled by the Coulomb interaction such noise can imprint potentially measurable signatures in multiparticle levitation experiments.
arXiv Detail & Related papers (2024-01-29T19:30:21Z) - Quantum control of ro-vibrational dynamics and application to
light-induced molecular chirality [39.58317527488534]
Achiral molecules can be made temporarily chiral by excitation with electric fields.
We go beyond the assumption of molecular orientations to remain fixed during the excitation process.
arXiv Detail & Related papers (2023-10-17T20:33:25Z) - Probing the symmetry breaking of a light--matter system by an ancillary
qubit [50.591267188664666]
Hybrid quantum systems in the ultrastrong, and even more in the deep-strong, coupling regimes can exhibit exotic physical phenomena.
We experimentally observe the parity symmetry breaking of an ancillary Xmon artificial atom induced by the field of a lumped-element superconducting resonator.
This result opens a way to experimentally explore the novel quantum-vacuum effects emerging in the deep-strong coupling regime.
arXiv Detail & Related papers (2022-09-13T06:14:08Z) - Giant optomechanical spring effect in plasmonic nano- and picocavities
probed by surface-enhanced Raman scattering [8.713553888457293]
Molecular vibrations couple to visible light only weakly, have small mutual interactions, and hence are often ignored for non-linear optics.
We show the extreme confinement provided by plasmonic nano- and pico-cavities can sufficiently enhance optomechanical coupling.
arXiv Detail & Related papers (2022-04-20T17:35:26Z) - Mechanical squeezing via unstable dynamics in a microcavity [0.0]
We show that strong mechanical quantum squeezing in a linear optomechanical system can be generated through the dynamical instability reached in the far red-detuned and ultrastrong coupling regime.
We argue for its feasibility for the case of a levitated nanoparticles coupled to a microcavity via coherent scattering.
Our results bring forth optical microcavities in the unresolved sideband regime as powerful mechanical squeezers for levitated nanoparticles, and hence as key tools for quantum-enhanced inertial and force sensing.
arXiv Detail & Related papers (2021-12-02T11:40:59Z) - 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) - 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) - Molecular Interactions Induced by a Static Electric Field in Quantum
Mechanics and Quantum Electrodynamics [68.98428372162448]
We study the interaction between two neutral atoms or molecules subject to a uniform static electric field.
Our focus is to understand the interplay between leading contributions to field-induced electrostatics/polarization and dispersion interactions.
arXiv Detail & Related papers (2021-03-30T14:45:30Z) - Stationary Gaussian Entanglement between Levitated Nanoparticles [0.0]
Coherent scattering of photons is a novel mechanism of optomechanical coupling for optically levitated nanoparticles.
We show that it allows efficient deterministic generation of Gaussian entanglement between two particles in separate tweezers.
arXiv Detail & Related papers (2020-06-05T09:55:10Z) - Weak-to-Strong Light-Matter Coupling and Dissipative Dynamics from First
Principles [0.0]
We generalize ab initio quantum-electrodynamical density functional theory to account for dissipative dynamics.
We study excited-state dynamics and spectral responses of benzene and toluene under weak-to-strong light-matter coupling.
arXiv Detail & Related papers (2020-02-24T19:00:00Z)
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.