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We investigate the interplay dynamics of a cavity qed system, where the two-level atoms are trapped in a double-well potential, and the cavity mode, with a frequency largely detuned to the atomic level splitting, is driven by a probe laser.…

Quantum Physics · Physics 2009-11-13 Jiang-Ming Zhang , Wu-Ming Liu , Duan-Lu Zhou

We address the fundamental question whether or not it is possible to achieve conditions under which the coupling of a single dipole to a strongly confined electromagnetic vacuum can result in non-perturbative corrections to the dipole's…

Quantum Physics · Physics 2023-07-10 Rocío Sáez-Blázquez , Daniele de Bernardis , Johannes Feist , Peter Rabl

We investigate a cavity quantum electrodynamic effect, where the alignment of two-dimensional freely rotating optical dipoles is driven by their collective coupling to the cavity field. By exploiting the formal equivalence of a set of…

Quantum Physics · Physics 2017-08-02 Erika Cortese , Pavlos Lagoudakis , Simone De Liberato

We introduce a theory of chemical equilibrium in optical microcavities, which allows us to relate equilibrium reaction quotients in different electromagnetic environments. Our theory shows that in planar microcavities under strong coupling…

Chemical Physics · Physics 2023-05-02 Kaihong Sun , Raphael F. Ribeiro

In this work, we investigate the influence of light-matter coupling on reaction dynamics and equilibrium properties of a single molecule inside an optical cavity. The reactive molecule is modeled using a triple-well potential, allowing two…

Chemical Physics · Physics 2025-07-21 Yaling Ke

Harnessing strong light-matter interactions to control chemical reactions in confined electromagnetic fields offers a promising route toward deepening our understanding of chemical dynamics at the collective quantum-mechanical level, with…

Chemical Physics · Physics 2026-01-21 Yaling Ke

We study a generic cavity-QED system where a set of (artificial) two-level dipoles is coupled to the electric field of a single-mode LC resonator. This setup is used to derive a minimal quantum mechanical model for cavity QED, which…

Quantum Physics · Physics 2018-04-19 Daniele De Bernardis , Tuomas Jaako , Peter Rabl

Proton transfer is ubiquitous in many fundamental chemical and biological processes, and the ability to modulate and control the proton transfer rate would have a major impact on numerous quantum technological advances. One possibility to…

Chemical Physics · Physics 2021-12-07 Fabijan Pavošević , Sharon Hammes-Schiffer , Angel Rubio , Johannes Flick

We study analytically and numerically the dynamical Casimir effect in a cavity containing two stationary 2-level atoms that interact with the resonance field mode via the Tavis-Cummings Hamiltonian. We determine the modulation frequencies…

Quantum Physics · Physics 2012-06-12 A. V. Dodonov , V. V. Dodonov

Molecular polaritons arise when molecules interact so strongly with light that they become entangled with each other. This light-matter hybridization alters the chemical and physical properties of the molecular system and allows chemical…

Chemical Physics · Physics 2023-07-28 Tor S. Haugland , John P. Philbin , Tushar K. Ghosh , Ming Chen , Henrik Koch , Prineha Narang

A theory for ground-state modifications of matter embedded in a Fabry-Perot cavity and whose excitations are described as harmonic oscillators is presented. Based on Lifshitz's theory for vacuum energy and employing a Lorentz model for the…

Quantum Physics · Physics 2026-01-05 Oleg V. Kotov , Johannes Feist , Francisco J. García-Vidal , Timur O. Shegai

We consider the discriminatory interaction of a chiral molecule with circularly polarised modes inside a cavity. Starting from a generalised Jaynes--Cummings model that includes both electric and magnetic dipole couplings, we derive the…

Quantum electrodynamics coupled-cluster (QED-CC) theory is used to model vacuum-field-induced changes to ground-state properties of a series of sodium halide compounds (NaX, X = F, Cl, Br, I) strongly coupled to an optical cavity.…

Chemical Physics · Physics 2021-03-17 A. Eugene DePrince

In this paper we develop quantum dynamical methods capable of treating the dynamics of chemically reacting systems in an optical cavity in the vibrationally strong-coupling (VSC) limit at finite temperatures and in the presence of a…

Quantum Physics · Physics 2025-02-11 Lachlan P. Lindoy , Arkajit Mandal , David R. Reichman

Cavity quantum electrodynamics (cavity QED) describes the coherent interaction between matter and an electromagnetic field confined within a resonator structure, and is providing a useful platform for developing concepts in quantum…

We develop a model of a quantum field confined within a cavity with a movable wall where the position of the wall is quantized. We obtain a full description of the dynamics of both the quantum field and the confining wall depending on the…

A dressed-state perturbation theory beyond the rotating waveapproxi-mation (RWA) is presented to investigate the interaction between a two level electronic transition of the polar molecules and a quantized cavity field. Analytical…

Quantum Physics · Physics 2015-11-03 Jing-Yun Zhao , Li-Guo Qin , Xun-Ming Cai , Qiang Lin , Zhong-Yang Wang

Recent experiments showed that the chemical reaction rate is modified, either increased or decreased, by strongly coupling a nuclear vibration mode to the single mode of an optical cavity. Herein we investigate how the rate of an…

Chemical Physics · Physics 2020-05-04 Nguyen Thanh Phuc , Pham Quang Trung , Akihito Ishizaki

Suggestion of modifications of finite-dimensional QED models are proposed for interpreting chemical reactions in terms of artificial atoms and molecules on quantum dots placed in optical cavities. Moving both photons and atoms is possible…

Recent experiments in polariton chemistry have demonstrated that reaction rates can be modified by vibrational strong coupling to an optical cavity mode. Importantly, this modification only occurs when the frequency of the cavity mode is…

Chemical Physics · Physics 2023-05-15 Marit R. Fiechter , Johan E. Runeson , Joseph E. Lawrence , Jeremy O. Richardson