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34 papers · 2 filters
Single-Atom Cavity QED and Opto-Micromechanics
M. Wallquist, K. Hammerer, P. Zoller +6
In a recent publication [K. Hammerer et al., Phys. Rev. Lett. 103, 063005 (2009)] we have shown the possibility to achieve strong coupling of the quantized motion of a micron-sized…
Scalable Quantum Computing based on Spin Qubits in CNT QD
Magdalena Stobińska, Gerard J. Milburn, Leszek Stobiński
We study experimentally demonstrated single-electron C CNT QD with significant spin-orbit interaction as a scalable quantum computer candidate. Both electron spin and orbi…
Critical properties of homogeneous binary trees
P. Silvi, V. Giovannetti, S. Montangero +3
Many-body states whose wave-function admits a representation in terms of a uniform binary-tree tensor decomposition are shown to obey to power-law two-body correlations functions.…
Correlated two-photon emission by transitions of Dirac-Volkov states in intense laser fields: QED predictions
E. Lötstedt, U. D. Jentschura
In an intense laser field, an electron may decay by emitting a pair of photons. The two photons emitted during the process, which can be interpreted as a laser-dressed double Compt…
Quantum entanglement in dense multiqubit systems
M. Macovei, J. Evers, C. H. Keitel
The pairwise entanglement of an arbitrary atomic pair randomly extracted from a laser-driven dense multiqubit sample in the presence of quantum dissipation due to spontaneous emiss…
Influence of Complex Exciton-Phonon Coupling on Optical Absorption and Energy Transfer of Quantum Aggregates
Jan Roden, Alexander Eisfeld, Wolfgang Wolff +1
We present a theory that efficiently describes the quantum dynamics of an electronic excitation that is coupled to a continuous, highly structured phonon environment. Based on a st…