Quantum amplification and simulation of strong and ultrastrong coupling of light and matter

Physics Reports, Год журнала: 2024, Номер 1078, С. 1 - 59

Опубликована: Май 24, 2024

The interaction of light and matter at the single-photon level is central importance in various fields physics, including, e.g., condensed astronomy, quantum optics, information. Amplification such light–matter can be highly beneficial to, improve device performance, explore novel phenomena, understand fundamental has therefore been a long-standing goal. Furthermore, simulation regime ultrastrong coupling, where strength comparable to bare frequencies uncoupled systems, also become hot research topic, considerable progress made both theoretically experimentally past decade. In this review, we provide detailed introduction recent advances amplification interaction, particularly cavity circuit electrodynamics optomechanics.

Язык: Английский

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Molecular Polaritons for Chemistry, Photonics and Quantum Technologies

Chemical Reviews, Год журнала: 2024, Номер 124(5), С. 2512 - 2552

Опубликована: Фев. 28, 2024

Molecular polaritons are quasiparticles resulting from the hybridization between molecular and photonic modes. These composite entities, bearing characteristics inherited both constituents, exhibit modified energy levels wave functions, thereby capturing attention of chemists in past decade. The potential to modify chemical reactions has spurred many investigations, alongside efforts enhance manipulate optical responses for quantum applications. This Review centers on experimental advances this burgeoning field. Commencing with an introduction fundamentals, including theoretical foundations various cavity architectures, we discuss outcomes polariton-modified reactions. Furthermore, navigate through ongoing debates uncertainties surrounding underpinning mechanism innovative method controlling chemistry. Emphasis is placed gaining a comprehensive understanding dynamics polaritons, particular, vibrational polaritons─a pivotal facet steering Additionally, unique capability coherent two-dimensional spectroscopy dissect polariton dark mode dynamics, offering insights into critical components within that alter We further expand utility applications as well precise manipulation polarizations, notably context chiral phenomena. discussion aspires ignite deeper curiosity engagement revealing physics properties, broad fascination harnessing environments control

Язык: Английский

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Direct Observation of Polaritonic Chemistry by Nuclear Magnetic Resonance Spectroscopy

Angewandte Chemie International Edition, Год журнала: 2024, Номер 63(23)

Опубликована: Апрель 8, 2024

Abstract Polaritonic chemistry is emerging as a powerful approach to modifying the properties and reactivity of molecules materials. However, probing how electronics dynamics molecular systems change under strong coupling has been challenging due narrow range spectroscopic techniques that can be applied in situ. Here we develop microfluidic optical cavities for vibrational (VSC) are compatible with nuclear magnetic resonance (NMR) spectroscopy using standard liquid NMR tubes. VSC shown influence equilibrium between two conformations balance sensitive London dispersion forces, revealing an apparent constant VSC. In all compounds studied, does not induce detectable changes chemical shifts, J‐couplings, or spin‐lattice relaxation times. This unexpected finding indicates substantially affect electron density distributions, turn profound implications possible mechanisms at play polaritonic suggests emergence collective behavior critical.

Язык: Английский

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Gradient High‐Q Dielectric Metasurfaces for Broadband Sensing and Control of Vibrational Light‐Matter Coupling

Advanced Materials, Год журнала: 2024, Номер 36(25)

Опубликована: Март 21, 2024

Surface-enhanced infrared absorption spectroscopy (SEIRA) has emerged as a powerful technique for ultrasensitive chemical-specific analysis. SEIRA can be realized by employing metasurfaces that enhance light-matter interactions in the spectral bands of molecular vibrations. Increasing sample complexity emphasizes need operate simultaneously at different bands, both accessing rich information over broad band, and resolving subtle differences fingerprints through narrow-band resonances. Here, novel concept resonance-gradient is introduced, where required selectivity achieved via local high-quality-factor (high-Q) resonances, while continuous coverage band enabled gradual adjustment unit-cell dimensions along planar structure. The highly tailorable design gradient provides flexibility shaping sampling density to match relevant target analytes keeping compact device footprint. versatility demonstrated several sensing scenarios, including polymer mixture deconvolution, detecting multistep bioassay, identification onset vibrational strong coupling regime. proposed gradient-resonance platform significantly contributes rapidly evolving landscape nonlocal metasurfaces, enabling applications detection analysis fundamental interaction phenomena.

Язык: Английский

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Nonadiabatic Field on Quantum Phase Space: A Century after Ehrenfest

The Journal of Physical Chemistry Letters, Год журнала: 2024, Номер 15(2), С. 644 - 658

Опубликована: Янв. 11, 2024

Nonadiabatic transition dynamics lies at the core of many electron/hole transfer, photoactivated, and vacuum field-coupled processes. About a century after Ehrenfest proposed "Phasenraum" theorem, we report conceptually novel trajectory-based nonadiabatic approach, field (NaF), based on generalized exact coordinate-momentum phase space formulation quantum mechanics. It does not employ conventional Born-Oppenheimer or trajectory in coupling region. Instead, NaF equations motion independent involve nuclear force term addition to an adiabatic single electronic state. A few benchmark tests for gas condensed systems indicate that offers practical tool capture correct correlation processes where states remain coupled all time as well asymptotic region vanishes.

Язык: Английский

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