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When the energy content of a resonant mode of a crystalline solid in thermodynamic equilibrium is directly measured, assuming that quantum effects can be neglected it coincides with temperature except for a proportionality factor. This is…

We investigate the entanglement between electronic and vibrational degrees of freedom produced by a vibronic coupling in a molecular system described in the Born-Oppenheimer approximation. Entanglement in a pure state of the Hilbert space…

Quantum Physics · Physics 2014-03-05 Mihaela Vatasescu

Coherent superposition of electronic states, created by ionizing a molecule, can initiate ultrafast dynamics of the electron density. Correlation between nuclear and electron motions, however, typically dissipates the electronic coherence…

Quantum Physics · Physics 2025-08-15 Alan Scheidegger , Nikolay V. Golubev , Jiri J. L. Vanicek

We present a comprehensive investigation of the light-matter interaction dynamics in two-dimensional materials coupled with a spectrally isolated cavity mode in the strong coupling regime. The interaction between light and matter breaks the…

Mesoscale and Nanoscale Physics · Physics 2023-12-18 Maria Vittoria Gurrieri , Emil V. Denning , Kristian Seegert , Philip T. Kristensen , Jesper Mørk

We theoretically designed and experimentally demonstrated a mechanism to protect a spatially segregated mixed light-matter state, known as intercavity exciton-polariton in strongly coupled optical cavities. This excitation, shared across…

A general rate theory for resonance energy transfer is formulated to incorporate any degrees of freedom (e.g., rotation, vibration, exciton, and polariton) as well as coherently-coupled composite states. The compact rate expression allows…

Chemical Physics · Physics 2022-01-31 Jianshu Cao

We study the dynamics of an electron weakly coupled to a phonon gas. The initial state of the electron is the superposition of two spatially localized distant bumps moving towards each other, and the phonons are in a thermal state. We…

Mathematical Physics · Physics 2009-11-13 Riccardo Adami , Laszlo Erdos

We study the elastic response of a stationarily driven system of a cavity field strongly coupled with molecular excitons, taking into account the main dissipation channels due to the finite cavity linewidth and molecular vibrations. We show…

Quantum Physics · Physics 2021-02-24 Kalle S. U. Kansanen , J. Jussi Toppari , Tero T. Heikkilä

In this article we report about linear and nonlinear optical properties of intersubband cavity polariton samples, where the resonant photonic mode is a defect state in a metallo-dielectric photonic crystal slab. By tuning a single geometric…

Mesoscale and Nanoscale Physics · Physics 2016-05-31 Simone Zanotto , Federica Bianco , Giorgio Biasiol , Lucia Sorba , Alessandro Tredicucci

We study the coupling of internal electronic excitations to vibrational modes of the external motion of ultracold atoms in an optical lattice. For different ground and excited state potentials the on-site coupling of excitations and…

Quantum Physics · Physics 2009-08-11 Hashem Zoubi , Helmut Ritsch

We develop a quantum mechanical formalism to treat the strong coupling between an electromagnetic mode and a vibrational excitation of an ensemble of organic molecules. By employing a Bloch-Redfield-Wangsness approach, we show that the…

Mesoscale and Nanoscale Physics · Physics 2015-05-26 Javier del Pino , Johannes Feist , Francisco J. Garcia-Vidal

Phonon interactions are inevitable in cavity quantum electrodynamical systems based on solid-state emitters or fluorescent molecules, where vibrations of the lattice or chemical bonds couple to the electronic degrees of freedom. Due to the…

Quantum Physics · Physics 2021-06-16 Matias Bundgaard-Nielsen , Jesper Mørk , Emil Vosmar Denning

We employ an exact quantum mechanical simulation technique to investigate a model of cavity-modified chemical reactions in the condensed phase. The model contains the coupling of the reaction coordinate to a generic solvent, cavity coupling…

Quantum Physics · Physics 2023-07-03 Lachlan P. Lindoy , Arkajit Mandal , David R. Reichman

We study a model of a photon mode dipole-coupled to a medium of two-level oscillators in a microcavity in the presence of dephasing processes introduced by coupling to external baths. Decoherence processes can be classified as pair-breaking…

Condensed Matter · Physics 2009-11-07 M. H. Szymanska , P. B. Littlewood

Light-matter interactions can occur when an ensemble of molecular resonators is placed in a confined electromagnetic field. In the strong coupling regime the rapid exchange of energy between the molecules and the electromagnetic field…

Mesoscale and Nanoscale Physics · Physics 2020-08-10 Philip A. Thomas , Wai Jue Tan , Henry A. Fernandez , William L. Barnes

Planar rotors can be realized by confining molecular ions or charged nanoparticles together with atomic ions in a Paul trap. We study the case of molecular ions or charged nanoparticles that have an electric dipole moment which couples to…

Quantum Physics · Physics 2025-04-02 Monika Leibscher , Ferdinand Schmidt-Kaler , Christiane P. Koch

Recent experiments of chemical reactions in optical cavities have shown great promise to alter and steer chemical reactions but still remain poorly understood theoretically. In particular the origin of resonant effects between the cavity…

Chemical Physics · Physics 2022-12-21 Derek S. Wang , Johannes Flick , Susanne F. Yelin

The collective interaction of electronic excitations with the electromagnetic field in atomic arrays can lead to reduced decay rates, forming subradiant states with applications in quantum information and memories. By including quantized…

Atomic Physics · Physics 2025-08-13 M. Eltohfa , F. Robicheaux

We demonstrate strong coupling between molecular excited states and surface plasmon modes of a slit array in a thin metal film. The coupling manifests itself as an anti-crossing behavior of the two newly formed polaritons. As the coupling…

Mesoscale and Nanoscale Physics · Physics 2012-08-17 Adi Salomon , Robert J. Gordon , Yehiam Prior , Tamar Seideman , Maxim Sukharev

We explore the behaviour of a system which consists of a photon mode dipole coupled to a medium of two-level oscillators in a microcavity in the presence of decoherence. We consider two types of decoherence processes which are analogous to…

Condensed Matter · Physics 2009-11-10 M. H. Szymanska , P. B. Littlewood , B. D. Simons
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