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40 papers · 1 filter
De Broglie Wavelength of a Nonlocal Four-Photon
Philip Walther, Jian-Wei Pan, Markus Aspelmeyer +3
Superposition is one of the most distinct features of quantum theory and has been demonstrated in numerous realizations of Young's classical double-slit interference experiment and…
The energy of a system of relativistic massless bosons bound by oscillator pair potentials
Richard L. Hall, Wolfgang Lucha, Franz F. Schoeberl
We study the lowest energy E of a semirelativistic system of N identical massless bosons with Hamiltonian H= sum{i=1 to N} sqrt(p_i^2)+ sum{j>i=1 to N} g |r_i - r_j|^2, g > 0. We p…
A measurement of the branching fractions of the b-quark into charged and neutral b-hadrons
The DELPHI Collaboration, J. Abdallah
The production fractions of charged and neutral b-hadrons in b-quark events from Z0 decays have been measured with the DELPHI detector at LEP. An algorithm has been developed, base…
Entanglement swapping of noisy states: A kind of superadditivity in nonclassicality
Aditi Sen De, Ujjwal Sen, Caslav Brukner +2
We address the question as to whether an entangled state that satisfies local realism will give a violation of the same, after entanglement swapping in a suitable scenario. We cons…
Cavity Assisted Nondestructive Laser Cooling of Atomic Qubits
A. Griessner, D. Jaksch, P. Zoller
We analyze two configurations for laser cooling of neutral atoms whose internal states store qubits. The atoms are trapped in an optical lattice which is placed inside a cavity. We…
New Ideas on SUSY Searches at Future Linear Colliders
S. Hesselbach, O. Kittel, G. Moortgat-Pick +1
Several results obtained within the SUSY group of the ECFA/DESY linear collider study are presented: (i) a possibility to determine tan beta and the trilinear couplings A_f via pol…