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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

We study an atom-cavity system in which the cavity has several degenerate transverse modes. Mode-resolved cavity transmission spectroscopy reveals well-resolved atom-cavity resonances for several cavity modes, a signature of collective…

In plasmonic chirality, the phenomenon of circular dichroism for achiral nanoparitcles caused by Coulomb interaction between metal nanoparticles (NPs) and chiral molecules have been studied. At the same time, under the resonance condition,…

Mesoscale and Nanoscale Physics · Physics 2020-09-04 Yangzhe Guo , Guodong Zhu , Yurui Fang

The way molecules absorb, transfer, and emit light can be dramatically modified by coupling them to optical cavities. The extent of the modification is often defined by the cavity-molecule coupling strength. Evaluating this coupling…

Optics · Physics 2020-09-21 Adarsh B Vasista , William L Barnes

We investigate the magnon-photon couplings by employing a small magnet within an irregular resonant cavity, which leads to a desirable nonreciprocity with a big isolation ratio. Moreover, the higher-order couplings between the spin wave…

Applied Physics · Physics 2021-06-02 Chi Zhang , Chenglong Jia , Yongzhang Shi , Changjun Jiang , Desheng Xue , C. K. Ong , Guozhi Chai

We present multi-mode deep-strong coupling in a multi-quantum well (N=166) heterostructure. The heterostructure itself acts as a Fabry-Perot cavity, for which the even cavity modes strongly couple to the cyclotron resonance to form Landau…

We examine the eigenstates of the one-dimensional Jaynes-Cummings-Hubbard (JCH) model in the two-excitation subspace. We discover that two-excitation bound states emerge when the ratio of vacuum Rabi frequency to the tunneling rate between…

Quantum Physics · Physics 2015-05-20 M. T. C. Wong , C. K. Law

Molecular complexes are held together via a variety of bonds, but they all share the common feature that their individual entities are in contact. In this work, we introduce and demonstrate the concept of a \textit{molecular optical bond},…

Mesoscale and Nanoscale Physics · Physics 2025-01-03 Jahangir Nobakht , André Pscherer , Jan Renger , Stephan Götzinger , Vahid Sandoghdar

Multi-normal-mode splitting peaks are experimentally observed in a system with Doppler-broadened two-level atoms inside a relatively long optical cavity. In this system, the atoms-cavity interaction can reach the ``superstrong coupling"…

Quantum Physics · Physics 2015-05-13 Xudong Yu , Dezhi Xiong , Haixia Chen , Pengjun Wang , Min Xiao , Jing Zhang

We propose a method of generating multipartite entanglement by considering the interaction of a system of N two-level atoms in a cavity of high quality factor with a strong classical driving field. It is shown that, with a judicious choice…

Quantum Physics · Physics 2009-11-07 E. Solano , G. S. Agarwal , H. Walther

We theoretically study a cavity filled with atoms, which provides the optical-mechanical interaction between the modified cavity photonic field and a movable mirror at one end. We show that the cavity field ``dresses'' these atoms,…

Quantum Physics · Physics 2009-02-16 H. Ian , Z. R. Gong , Yu-xi Liu , C. P. Sun , Franco Nori

We demonstrate a new type of transition within the strong coupling regime, which alters the coupling mechanism in multimode cavities. We show that this transition drastically modifies the Hamiltonian describing the polaritons, such that…

Mesoscale and Nanoscale Physics · Physics 2021-06-16 M. Balasubrahmaniyam , C. Genet , T. Schwartz

We present a combined classical and quantum electrodynamics description of the coupling between two circularly-polarized quantum emitters held above a metal surface supporting surface plasmons. Depending on their position and their natural…

Mesoscale and Nanoscale Physics · Physics 2019-02-11 C. A. Downing , J. C. López Carreño , F. P. Laussy , E. del Valle , A. I. Fernández-Domínguez

We consider the dynamics of a vibrating and rotating end-mirror of an optical Fabry-P{\'erot} cavity that can sustain Laguerre-Gaussian modes. We demonstrate theoretically that since the intra-cavity field carries linear as well as angular…

Quantum Physics · Physics 2009-11-13 M. Bhattacharya , P. -L. Giscard , P. Meystre

We show that coupling among multiple resonances can be conveniently introduced and controlled by boundary wave scattering. We demonstrate this principle in optical microcavities of quasi-circular shape, where the couplings of multiple modes…

Polariton chemistry exploits the strong interaction between quantized excitations in molecules and quantized photon states in optical cavities to affect chemical reactivity. Molecular polaritons have been experimentally realized by the…

Chemical Physics · Physics 2023-09-06 Jonathan J. Foley , Jonathan F. McTague , A. Eugene DePrince

We explore the interplay between tunneling process and chiral interactions in the discrimination of chiral states for an ensemble of molecules in a biological environment. Each molecule is described by an asymmetric double-well potential…

Biomolecules · Quantitative Biology 2017-04-28 Arash Tirandaz , Farhad Taher Ghahramani , Afshin Shafiee

This study investigates the dynamic behavior of polaritons in an optical cavity containing one million molecules, emphasizing the influence of molecular rotation and level disorder on the coupling between molecules and photons. Through…

Optics · Physics 2024-02-22 Wei Liu , Jingqi Chen , Wenjie Dou

Vibrational polaritons are formed by strong coupling of molecular vibrations and photon modes in an optical cavity. Experiments have demonstrated that vibrational strong coupling can change molecular properties and even affect chemical…

Quantum Physics · Physics 2025-01-14 Thomas Schnappinger , Cyril Falvo , Markus Kowalewski

The Jaynes-Cummings model, with and without the rotating wave approximation, is expressed in the conjugate variable representation and solved numerically by wave packet propagation. Both cases are then cast into systems of two coupled…

Quantum Physics · Physics 2015-05-13 Jonas Larson