Results 1 to 10 of about 1,003,380 (249)

Stimulated resonant inelastic x-ray scattering with chirped, broadband pulses

, 2018
We present an approach for initiating and tracing ultra-fast electron dynamics in core-excited atoms, molecules and solids. The approach is based on stimulated resonant inelastic x-ray scattering induced by a single, chirped, broadband XUV/x-ray pulse. A
Hollstein, Maximilian, Rohringer, Nina
core   +2 more sources

Excitation spectroscopy of few-electron states in artificial diatomic molecules

, 2013
We study the excitation spectroscopy of few-electron, parallel coupled double quantum dots (QDs). By applying a finite source drain voltage to a double QD (DQD), the first excited states observed in nonequilibrium charging diagrams can be classified into
Amaha, S., Hatano, T., Kubo, T., Tarucha, S., Teraoka, S., Tokura, Y.   +5 more
core   +1 more source

Self-Organized Bottleneck in Energy Relaxation

, 2003
We study an energy relaxation process after many degrees of freedom are excited in a Hamiltonian system with a large number of degrees of freedom. Bottlenecks of relaxation, where relaxations of the excited elements are drastically slowed down, are ...
, , , , Boltzmann L., H Morita, Jeans J. H., Jeans J. H., K Kaneko, Konishi T., Kuramoto Y., Landau L. D., Lifshitz E. M., Pluchino A.   +13 more
core   +1 more source

Optical control of excited-state lifetimes [PDF]

, 2010
Electronic excitation of particles in fluorescent materials can now be controlled using laser-assisted energy-transfer ...
Andrews, David, Bradshaw, David
core   +1 more source

Excited States of Ladder-type Poly-p-phenylene Oligomers

, 2000
Ground state properties and excited states of ladder-type paraphenylene oligomers are calculated applying semiempirical methods for up to eleven phenylene rings. The results are in qualitative agreement with experimental data.
A. Köhler, C. Møller, D. Guo, D. Yaron, Florian Gebhard, G. A. Petersson, G. D. Mahan, G. Wegner, Heinz Bässler, J. A. Pople, J. Cornil, J. E. Ridley, J. Grimme, J. J. P. Stewart, J. S. Dewar, J.-W. van der Horst, Jörg Rissler, M. C. Zerner, M. G. Harrison, M. Knupfer, M. Rohlfing, M. S. Gordon, M. Y. Larentiev, P. C. Hariharan, P. C. Hariharan, Peter Schwerdtfeger, R. Ditchfield, S. Abe, S. Barth, S. F. Alvarado, T. Pauck, U. Scherf, V. I. Archipov, W. J. Hehre   +33 more
core   +2 more sources

Dynamical Casimir-Polder energy between an excited and a ground-state atom

, 2004
We consider the Casimir-Polder interaction between two atoms, one in the ground state and the other in its excited state. The interaction is time-dependent for this system, because of the dynamical self-dressing and the spontaneous decay of the excited ...
F. Persico, G. Compagno, G. Compagno, L. Rizzuto, R. Passante   +4 more
core   +1 more source

Retrodiction as a tool for micromaser field measurements [PDF]

, 2002
We use retrodictive quantum theory to describe cavity field measurements by successive atomic detections in the micromaser. We calculate the state of the micromaser cavity field prior to detection of sequences of atoms in either the excited or ground ...
BARNETT S. M., Barnett S. M., BOX G. E. P., DAVID PEGG, HELSTROM C. W., JEFFERS J., JOHN JEFFERS, PEOG D. T., STEPHEN BARNETT   +8 more
core   +2 more sources

Optimization of ground and excited state wavefunctions and van der Waals clusters [PDF]

, 2000
A quantum Monte Carlo method is introduced to optimize excited state trial wavefunctions. The method is applied in a correlation function Monte Carlo calculation to compute ground and excited state energies of bosonic van der Waals clusters of upto seven
Andrei Mushinski, B. Bernu, C. J. Umrigar, C. J. Umrigar, C. J. Umrigar, D. Blume, D. Blume, D. H. Zhang, D. M. Ceperley, D. M. Leitner, G. H. Golub, J. de Boer, J. H. Hetherington, J. K. L. MacDonald, M. Caffarel, M. Caffarel, M. Foulkes, M. Meierovich, M. P. Nightingale, M. P. Nightingale, M. P. Nightingale, V. Melik-Alaverdian, Vilen Melik-Alaverdian, W. H. Press, W. R. Brown   +24 more
core   +3 more sources

Singlet Excited States of Anions with Higher Main Group Elements

, 2013
Previous studies have shown that dipole-bound excited states exist for certain small anions. However, valence excited states have been reported for some closed-shell anions, but those with singlet valence excited states have, thus far, contained a single
Fortenberry, Ryan C.
core   +1 more source

Exchange couplings in the magnetic molecular cluster Mn12Ac

, 2002
The magnetic properties of the molecular cluster Mn12Ac are due to the four Mn3+ ions which have spins S=3/2 and the eight Mn4+ ions with spins S=2. These spins are coupled by superexchange mechanism.
A. Caneschi, A.A. Mukhin, A.K. Zvezdin, A.L. Barra, A.M. Gomes, B. Barbara, C. Raghu, D. Gatteschi, I. Mirebeau, M. Hennion, M. Verdaguer, N. Regnault, O. Golinelli, R. Sessoli, R. Sessoli, R. Sessoli, T. Lis, Th. Jolicœur   +17 more
core   +1 more source