Results 21 to 30 of about 1,003,380 (249)
Ultrafast Dynamics of Excited Electronic States in Nitrobenzene Measured by Ultrafast Transient Polarization Spectroscopy. [PDF]
, 2019 We investigate ultrafast dynamics of the lowest singlet excited electronic state in liquid nitrobenzene using ultrafast transient polarization spectroscopy, extending the well-known technique of optical Kerr effect spectroscopy to excited electronic ...
Bakhti, Said +9 more
core +2 more sources
Nanomaterials, 2023 Photo-controlled self-assembly of nanoparticles (NPs) is an advanced and promising approach to address a series of material issues from the molecular level to the nano/micro scale, owing to the fact that light stimulus is typically precise and rapid, and
Juntan Li, Xiaoyong Jia
doaj +1 more source
Variational study of the Holstein polaron [PDF]
, 2002 The paper deals with the ground and the first excited state of the polaron in the one dimensional Holstein model. Various variational methods are used to investigate both the weak coupling and strong coupling case, as well as the crossover regime between
Candler G.V., Sun Q., Wang W.-L.
core +6 more sources
Correlations in excited states of local Hamiltonians [PDF]
, 2011 Physical properties of the ground and excited states of a $k$-local Hamiltonian are largely determined by the $k$-particle reduced density matrices ($k$-RDMs), or simply the $k$-matrix for fermionic systems---they are at least enough for the calculation ...
A. J. Coleman +6 more
core +1 more source
Molecules, 2020 Recent studies have shown that molecular aggregation structures in precursor solutions of organic photovoltaic (OPV) polymers have substantial influence on polymer film morphology, exciton and charge carrier transport dynamics, and hence, the resultant ...
Thomas J. Fauvell +8 more
doaj +1 more source
Quantum quenches from an excited state
Nuclear Physics B, 2023 Determining the role of initial conditions in the late time evolution is a key issue for the theory of nonequilibrium dynamics of isolated quantum systems. Here we extend the theory of quantum quenches to the case in which before the quench the system is
Gesualdo Delfino, Marianna Sorba
doaj +1 more source
Nuclear quantum effects on the non-adiabatic decay mechanism of an excited hydrated electron [PDF]
, 2007 We present a kinetic analysis of the non-adiabatic decay mechanism of an excited state hydrated electron to the ground state. The theoretical treatment is based on a quantized, gap dependent golden rule rate constant formula which describes the non ...
Borgis, Daniel +2 more
core +1 more source
International Journal of Adaptive Control and Signal Processing, EarlyView., 2023 Summary In this contribution, we propose a detailed study of interpolation‐based data‐driven methods that are of relevance in the model reduction and also in the systems and control communities. The data are given by samples of the transfer function of the underlying (unknown) model, that is, we analyze frequency‐response data.
Quirin Aumann, Ion Victor Gosea
wiley +1 more source
Temperature-Dependent Dual Fluorescence from Small Organic Molecules
Organic Materials, 2022 The temperature-dependent dual fluorescence from a single component of small organic molecules (SOMs) is very promising for the ratiometric fluorescence sensing of temperature. However, the SOM-based fluorophores typically only show one fluorescence band.
Min Wang, Run-Ze Wang, Cui-Hua Zhao
doaj +1 more source
Entropy, chaos and excited-state quantum phase transitions in the Dicke model [PDF]
, 2016 We study non-equilibrium processes in an isolated quantum system ---the Dicke model--- focusing on the role played by the transition from integrability to chaos and the presence of excited-state quantum phase transitions.
Lóbez, C. M., Relaño, A.
core +3 more sources