Stochastic resonance in vibrational polariton chemistry

• URL: http://arxiv.org/abs/2411.07616v2
• Date: Fri, 17 Jan 2025 13:06:20 GMT
• Title: Stochastic resonance in vibrational polariton chemistry
• Authors: Yaling Ke,
• Abstract summary: We investigate the impact of ambient noise intensity on the rate modifications of ground-state chemical reactions in an optical cavity under vibrational strong-coupling conditions. Our findings reveal a resonance phenomenon in cavity-modified chemical reactivities: an optimal reaction rate occurs at an intermediate noise level.
• Score: 0.0
• License:
• Abstract: In this work, we systematically investigate the impact of ambient noise intensity on the rate modifications of ground-state chemical reactions in an optical cavity under vibrational strong-coupling conditions. To achieve this, we utilize a numerically exact open quantum system approach--the hierarchical equations of motion in twin space, combined with a flexible tree tensor network state solver. Our findings reveal a stochastic resonance phenomenon in cavity-modified chemical reactivities: an optimal reaction rate enhancement occurs at an intermediate noise level. In other words, this enhancement diminishes if ambient noise, sensed by the cavity-molecule system through cavity leakage, is either too weak or excessively strong. In the collective coupling regime, when the cavity is weakly damped, rate enhancement strengthens as more molecules couple to the cavity. In contrast, under strong cavity damping, reaction rates decline as the number of molecules grows.

Related papers

• Cavity-Mediated Collective Resonant Suppression of Local Molecular Vibrations [0.0]
  Recent advances in polaritonic chemistry suggest that chemical reactions can be controlled via collective vibrational strong coupling (VSC) in a cavity. We provide an analytical framework for the dynamics of a molecular ensemble under VSC, revealing that strong collective coupling induces a collective beating. Our model offers insights into how collective VSC can resonantly dampen local molecular vibrations in the collective regime, potentially altering chemical reactivity.
  arXiv  Detail & Related papers  (2025-02-15T22:21:44Z)
• Steering Non-Equilibrium Molecular Dynamics in Optical Cavities [11.581137921729066]
  We study cooperative vibrational strong coupling in an open quantum system. Our work offers a pathway to steer stability of chemical bonds for chemical reactivity under cooperative vibrational strong coupling.
  arXiv  Detail & Related papers  (2024-12-10T15:28:00Z)
• Multi-level Purcell effect and the impact of vibrational modes in molecular quantum optics [62.997667081978825]
  We study a manifestation of the Purcell effect in a bio-inspired photosynthetic dimer. We provide a theoretical picture in terms of an effective non-Hermitian Hamiltonian.
  arXiv  Detail & Related papers  (2023-06-15T18:27:40Z)
• Dissipative stabilization of maximal entanglement between non-identical emitters via two-photon excitation [49.1574468325115]
  Two non-identical quantum emitters, when placed within a cavity and coherently excited at the two-photon resonance, can reach stationary states of nearly maximal entanglement. We show that this mechanism is merely one among a complex family of phenomena that can generate both stationary and metastable entanglement when driving the emitters at the two-photon resonance.
  arXiv  Detail & Related papers  (2023-06-09T16:49:55Z)
• Quantum vibrational mode in a cavity confining a massless spinor field [91.3755431537592]
  We analyse the reaction of a massless (1+1)-dimensional spinor field to the harmonic motion of one cavity wall. We demonstrate that the system is able to convert bosons into fermion pairs at the lowest perturbative order.
  arXiv  Detail & Related papers  (2022-09-12T08:21:12Z)
• Probing dynamics of a two-dimensional dipolar spin ensemble using single qubit sensor [62.997667081978825]
  We experimentally investigate individual spin dynamics in a two-dimensional ensemble of electron spins on the surface of a diamond crystal. We show that this anomalously slow relaxation rate is due to the presence of strong dynamical disorder. Our work paves the way towards microscopic study and control of quantum thermalization in strongly interacting disordered spin ensembles.
  arXiv  Detail & Related papers  (2022-07-21T18:00:17Z)
• 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)
• 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)
• Cavity-Altered Thermal Isomerization Rates and Dynamical Resonant Localization in Vibro-Polaritonic Chemistry [0.0]
  Reaction rates for molecules embedded in microfluidic optical cavities are altered when compared to rates observed under "ordinary" reaction conditions. We study how strong coupling of an optical cavity mode to molecular vibrations affect the reactivity and how resonance behavior emerges.
  arXiv  Detail & Related papers  (2021-09-28T09:06:08Z)
• Shining Light on the Microscopic Resonant Mechanism Responsible for Cavity-Mediated Chemical Reactivity [0.0]
  Strong light-matter interaction in cavity environments is emerging as a promising approach to control chemical reactions in a non-intrusive and efficient manner. We leverage quantum-electrodynamical density-functional theory to unveil the microscopic mechanism behind the experimentally observed reduced reaction rate under cavity induced resonant vibrational strong light-matter coupling.
  arXiv  Detail & Related papers  (2021-04-26T09:40:43Z)
• Cavity-assisted enhanced and dephasing immune squeezing in the resonance fluorescence of a single quantum dot [0.0]
  We show the enhanced and dephasing immune squeezing in the resonance fluorescence of a single quantum dot (QD) confined to a pillar-microcavity. We employ a formalism based on Polaron master equation theory for incorporating the influence of exciton-phonon coupling quite accurately in the dot-cavity system.
  arXiv  Detail & Related papers  (2020-05-08T02:04:52Z)

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.