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Molecular simulations of polymer rely on accurate force fields to describe the inter-atomic interactions. In this work, we use first-principles density functional theory (DFT) calculations to parameterize a united-atom force field for…

材料科学 · 物理学 2020-09-30 Teng Zhang , Jiaxin Xu , Tengfei Luo

Recent experiments have shown that C60 can be positively field-doped. In that state, fullerene exhibits a higher resistivity and a higher superconducting temperature than the corresponding negatively doped state. A strong intramolecular…

超导电性 · 物理学 2009-11-07 Nicola Manini , Andrea Dal Corso , Michele Fabrizio , Erio Tosatti

We analyze Cooper pairing instabilities in strongly driven electron-phonon systems. The light-induced non-equilibrium state of phonons results in a simultaneous increase of the superconducting coupling constant and the electron scattering.…

超导电性 · 物理学 2016-12-16 Michael Knap , Mehrtash Babadi , Gil Refael , Ivar Martin , Eugene Demler

The essentially non-perturbative polarization effects are considered for a planar supercritical Dirac-Coulomb system with strong coupling (similar to graphene and graphene-based heterostructures) in terms of induced charge density…

介观与纳米尺度物理 · 物理学 2018-12-26 Yu. Voronina , K. Sveshnikov , P. Grashin , A. Davydov

Nonperturbative coupling of light with condensed matter in an optical cavity is expected to reveal a host of coherent many-body phenomena and states. In addition, strong coherent light-matter interaction in a solid-state environment is of…

Light-matter interactions have generated considerable interest as a means to manipulate material properties. Light-induced superconductivity has been demonstrated using pulsed lasers. An attractive alternative possibility is to exploit…

Conducting Polymer Dendrites (CPD) are truly inspiring for unconventional electronics that shapes topological circuitries evolving upon an application. Driven by electrochemical processes, an electrochemical impedance rules signal…

应用物理 · 物理学 2024-07-02 Antoine Baron , Enrique Hernández-Balaguera , Sébastien Pecqueur

The vibrational properties of a series of push-pull polyynes have been studied by infrared and Raman spectroscopy. The simultaneous activation of a strong infrared and Raman mode, i.e. the collective vibration of CC bonds of the sp carbon…

Using carefully designed hybrid metal-dielectric resonators, we study molecular optomechanics in the strong coupling regime ($g_{\rm }^2/\omega_m {>} \kappa$), which manifests in anharmonic emission lines in the sideband-resolved region of…

介观与纳米尺度物理 · 物理学 2019-11-28 Mohsen Kamandar Dezfouli , Reuven Gordon , Stephen Hughes

We theoretically demonstrate the formation of a new type of unconventional superconductivity in graphene materials, which exhibits gapless property. The studied superconductivity is based on an interlayer pairing of chiral electrons in…

介观与纳米尺度物理 · 物理学 2015-06-04 Mir Vahid Hosseini , Malek Zareyan

Exciton-polaritons in semiconductors are quasi-particles which have recently shown the capability to undergo phase transition into a coherent hybrid state of light and matter. The observation of such quasi-particles in organic microcavities…

Exciton harvesting is demonstrated in an ensemble of quantum emitters coupled to localized surface plasmons. When the interaction between emitters and the dipole mode of a metallic nanosphere reaches the strong coupling regime, the exciton…

介观与纳米尺度物理 · 物理学 2015-09-16 Carlos Gonzalez-Ballestero , Johannes Feist , Esteban Moreno , Francisco J. Garcia-Vidal

The band structure and electronic properties in a series of vinylene-linked heterocyclic conducting polymers are investigated using density functional theory (DFT). In order to accurately calculate electronic band gaps, we utilize hybrid…

材料科学 · 物理学 2015-03-13 Bryan M. Wong , Joseph G. Cordaro

An array of one-dimensional conductors coupled by transverse hopping and interaction is studied with the help of a variational wave function. This wave function is devised as to account for one-dimensional correlation effects. We show that…

超导电性 · 物理学 2010-11-11 A. V. Rozhkov

Quantum light-matter systems at strong coupling are notoriously challenging to analyze due to the need to include states with many excitations in every coupled mode. We propose a nonperturbative approach to analyze light-matter correlations…

介观与纳米尺度物理 · 物理学 2021-04-15 Yuto Ashida , Atac Imamoglu , Eugene Demler

Doped one-dimensional (1D) conjugated polymers, such as polyacetylene, have a conductivity of some metals, like copper. We show that when this polymer is asymmetrically doped, unexpected properties are revealed, when compared to the…

强关联电子 · 物理学 2008-11-26 Heron Caldas

Strong light-matter coupling gives rise to polaritons - hybrid excitations whose mixed photonic and matter character enables control over optical, electronic and chemical properties. This Feature Article surveys the main architectures…

In this paper we report the first measurements of carrier mobilities in an inorganic nanocrystal: conducting polymer composite. The composite material in question (lead sulphide nanocrystals in the conducting polymer MEH-PPV was made using…

材料科学 · 物理学 2016-08-31 Andrew Watt , Troy Eichman , Halina Rubinsztein-Dunlop , Paul Meredith

Strong coupling between excitons and confined modes of light presents a promising pathway to tunable and enhanced energy transport in organic materials. By forming hybrid light-matter quasiparticles, exciton-polaritons, electronic…

化学物理 · 物理学 2024-11-01 Niclas Krupp , Gerrit Groenhof , Oriol Vendrell

Thermal transport properties of amorphous carbon has attracted increasing attention due to its extreme thermal properties: It has been reported to have among the highest thermal conductivity for bulk amorphous solids up to $\sim$ 37…

无序系统与神经网络 · 物理学 2024-05-14 Jaeyun Moon , Zhiting Tian