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相关论文: Vibration-assisted coherent excitation energy tran…

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Experiments have shown that the internal vibrational state of a molecule can affect the intensity of high harmonic light generated from that molecule. This paper presents a model which explains this modulation in terms of interference…

原子物理 · 物理学 2015-05-13 Zachary B. Walters , Stefano Tonzani , Chris H. Greene

Recently, strong coupling between non-Hermitian physical systems of different nature is widely investigated due to it endows them with new properties. In this work, we investigate the energy transport between strongly coupled systems. We…

量子物理 · 物理学 2022-11-17 I. V. Vovcenko , A. A. Zyablovsky , A. A. Pukhov , E. S. Andrianov

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…

量子物理 · 物理学 2009-08-11 Hashem Zoubi , Helmut Ritsch

We investigate multichromophoric energy transfer allowing for bath-induced fluctuations at different sites to be correlated. As a prototype system we consider a light-harvesting antenna surrounding a reaction center. We show that the…

量子物理 · 物理学 2010-07-16 Francesca Fassioli , Ahsan Nazir , Alexandra Olaya-Castro

A fully quantum multiphonon up-pumping model is proposed to characterize coherent energy transfer in energetic materials (EMs) subjected to external shock. After eliminating the degrees of freedom of the phonon bath within a mean-field…

量子物理 · 物理学 2026-05-20 Jiong Cheng , Yanqiang Yang , Wenlin Li , Xun Li

A quantitative description of the exchange interaction in quantum dots is relevant for modeling gate operations of spin qubits. By measuring the amplitude and frequency of exchange-driven qubit state oscillations, we measure the detuning…

We study charge and energy transfer in two-site molecular electronic junctions in which electron transport is assisted by a vibrational mode. To understand the role of mode harmonicity/anharmonicity on transport behavior, we consider two…

介观与纳米尺度物理 · 物理学 2015-09-01 Bijay Kumar Agarwalla , Jian-Hua Jiang , Dvira Segal

The soft character of organic materials leads to strong coupling between molecular nuclear and electronic dynamics. This coupling opens the way to control charge transport in organic electronic devices by inducing molecular vibrational…

Although entanglement is considered as an essential resource for quantum information processing, whether entanglement helps for energy conversion or output in the quantum regime is still lack of experimental witness. Here we report on an…

量子物理 · 物理学 2024-04-25 J. -W. Zhang , B. Wang , W. -F. Yuan , J. -C. Li , J. -T. Bu , G. -Y. Ding , W. -Q. Ding , L. Chen , F. Zhou , M. Feng

In the present work, we analyze the influence of the polarization effects taking place during the course of a 2DIR spectroscopy experiment performed on a molecular system undergoing an intermolecular vibrational energy transfer process.…

化学物理 · 物理学 2017-08-18 Albert A. Villaeys , Mabrouk Zouari , Kuo Kan Liang

Molecular structures with multiple donor, bridge, or acceptor units can display quantum interference effects that influence electron and energy transfer (ET and EnT) rates. Recent experiments found a 4- to 5-fold increase in ET rates for…

化学物理 · 物理学 2025-06-27 Hanggai Nuomin , Feng-Feng Song , Peng Zhang , David N. Beratan

Based on concepts from quantum thermodynamics the two-level system coupled to a single electromagnetic mode is analyzed. Focusing on the case of detuning, where the mode frequency does not match the transition frequency, effective energies…

量子物理 · 物理学 2022-02-02 Andreas Wacker

We investigate a system composed of $N$ coupled cavities and two-level atoms interacting one at a time. Adjusting appropriately the atom-field detuning, and make the hopping rate of photons between neighboring cavities, $A$, greater than…

量子物理 · 物理学 2010-08-23 Bruno F. C. Yabu-uti , José A. Roversi

The mechanisms of energy and spin transfer in quantum dot pairs coupled via the Coulomb interaction are studied. Exciton transfer can be resonant or phonon-assisted. In both cases, the transfer rates strongly depend on the resonance…

介观与纳米尺度物理 · 物理学 2009-11-11 Alexander O. Govorov

Vibrationally inelastic electron transport through a flexible molecular junction is investigated. The study is based on a mechanistic model for a biphenyl molecule between two metal electrodes. Employing methods from electron-molecule…

介观与纳米尺度物理 · 物理学 2023-07-26 Martin Cizek , Michael Thoss , Wolfgang Domcke

We study heat transfer between conductors, mediated by the excitation of a monomodal harmonic oscillator. Using a simple model, we show that the onset of rectification in the system is directly related to the nonlinearity of the electron…

介观与纳米尺度物理 · 物理学 2009-11-13 Dvira Segal

A theoretical model of a single molecule coupled to many vibronic modes is presented. At low energies, transport is dominated by electron-vibron processes where transfer of an electron through the dot is accompanied by the…

介观与纳米尺度物理 · 物理学 2011-08-19 Abdullah Yar , Andrea Donarini , Sonja Koller , Milena Grifoni

A theoretical model of a single molecule coupled to many vibronic modes is presented. At low energies, transport is dominated by electron-vibron processes where transfer of an electron through the dot is accompanied by the…

介观与纳米尺度物理 · 物理学 2015-03-17 Abdullah Yar , Andrea Donarini , Sonja Koller , Milena Grifoni

We show that quantum optical systems preserving the total number of excitations admit a simple classification of possible resonant transitions (including effective), which can be classified by analizying the free Hamiltonian and the…

量子物理 · 物理学 2007-05-23 A. B. Klimov , I. Sainz

We investigate the dynamics of coherence and entanglement of vibrating qubits. Firstly, we consider a single trapped ion qubit inside a perfect cavity and successively we use it to construct a bipartite system made of two of such…

量子物理 · 物理学 2018-05-14 Ali Mortezapour , Ghasem Naeimi , Rosario Lo Franco