Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Centre National de la Recherche ScientifiqueFR2.9k papers
- University of MichiganUS2k papers
- Institute for High Energy PhysicsES1.9k papers
- University College LondonGB1.9k papers
- University of ManchesterGB1.9k papers
- University of BonnDE1.9k papers
- Commissariat à l'Énergie Atomique et aux Énergies AlternativesFR1.8k papers
- Brookhaven National LaboratoryUS1.8k papers
- University of ArizonaUS1.8k papers
- Institut National de Physique Nucléaire et de Physique des ParticulesFR1.8k papers
- Max Planck Institute for PhysicsDE1.8k papers
- Aix-Marseille UniversitéFR1.8k papers
109 papers · 1 filter
Spinon signatures in the critical phase of the (1,1/2) ferrimagnet in a magnetic field
A. K. Kolezhuk, H. -J. Mikeska, K. Maisinger +1
We propose an effective theory for the critical phase of a quantum ferrimagnetic chain with alternating spins 1 and 1/2 in an external magnetic field. With the help of the matrix p…
Compact support of spherically symmetric equilibria in non-relativistic and relativistic galactic dynamics
Gerhard Rein, Alan D. Rendall
Equilibrium states in galactic dynamics can be described as stationary solutions of the Vlasov-Poisson system, which is the non-relativistic case, or of the Vlasov-Einstein system,…
An Atom Laser with a cw Output Coupler
Immanuel Bloch, Theodor W. Haensch, Tilman Esslinger
We demonstrate a continuous output coupler for magnetically trapped atoms. Over a period of up to 100 ms a collimated and monoenergetic beam of atoms is continuously extracted from…
A Measurement of the tau->electron Branching Ratio
The OPAL Collaboration, G. Abbiendi et al
The branching ratio for the decay tau->e nue nutau has been measured using Z0 decay data collected by the OPAL experiment at LEP. In total 33073 tau->e nue nutau candidates were id…
Embedded surfaces and almost complex structures
Christian Bohr
We prove necessary and sufficient conditions for a smooth surface in a 4-manifold X to be pseudoholomorphic with respect to some almost complex structure on X. This provides a syst…
On the relation between lifting obstructions and ordinary obstructions
Christian Bohr
We consider partial liftings of maps at fibrations and compare the primary obstruction to extend the lifting with the obstruction to extend the lifting as a simple map into the tot…
Nano-ploughed Josephson Junctions as on-chip Radiation Sources
B. Irmer, F. Simmel, R. H. Blick +4
A new technique is presented which enables the fabrication of highly transparent Josephson junctions in combination with mesoscopic devices. We utilize a modified AFM tip to plough…
Anomalous couplings for D-branes and O-planes
Jose F. Morales, Claudio A. Scrucca, Marco Serone
We study anomalous Wess-Zumino couplings of D-branes and O-planes in a general background and derive them from a direct string computation by factorizing in the RR channel various…
Spin dependent D-brane interactions and scattering amplitudes in matrix theory
J. F. Morales, J. C. Plefka, C. A. Scrucca +2
Spin interactions beteween two moving Dp-branes are analyzed using the Green-Schwarz formalism of boundary states. This approach turns out to be extremely efficient to compute all…
Anomalous Kondo-effect in Quantum Dot at non-zero bias
F. Simmel, R. H. Blick, J. P. Kotthaus +2
We present measurements on the Kondo-effect in a small quantum dot connected strongly to one lead and weakly to the other. The conductance of the dot reveals an offset of the Kondo…
Compatibility of neutron star masses and hyperon coupling constants
H. Huber, M. K. Weigel, F. Weber
It is shown that the modern equations of state for neutron star matter based on microscopic calculations of symmetric and asymmetric nuclear matter are compatible with the lower bo…
Non-holomorphic effective potential in N = 4 SU(n) SYM
E. I. Buchbinder, I. L. Buchbinder, S. M. Kuzenko
We compute the one-loop non-holomorphic effective potential for the N=4 SU(n) supersymmetric Yang-Mills theory with the gauge symmetry broken down to the maximal torus. Our approac…
The geometry of second-order statistics - biases in common estimators
Martin Kerscher
Second-order measures, such as the two-point correlation function, are geometrical quantities describing the clustering properties of a point distribution. In this article well-kno…
Decay of the Two-Point Function in One-Dimensional O(N) Spin Models with Long Range Interactions
Herbert Spohn, Wilhelm Zwerger
Using Griffiths and Lieb-Simon type inequalities, it is shown that the two-point function of ferromagnetic spin models with N components in one dimension decays like the interactio…
Quantum noise and correlations in resonantly enhanced wave mixing based on atomic coherence
M. D. Lukin, A. B. Matsko, M. Fleischhauer +1
We investigate the quantum properties of fields generated by resonantly enhanced wave mixing based on atomic coherence in Raman systems. We show that such a process can be used for…
Riemann-Hilbert Problems for the Ernst Equation and Fibre Bundles
C. Klein, O. Richter
Riemann--Hilbert techniques are used in the theory of completely integrable differential equations to generate solutions that contain a free function which can be used at least in…
The UV emission of elliptical galaxies
Laura Greggio, Alvio Renzini
Recent observational and theoretical developments concerning the origin of the ultraviolet emission from ellipticals are reviewed and discussed,with particular, reference to the ex…
Optical pumping in dense atomic media: Limitations due to reabsorption of spontaneously emitted photons
Michael Fleischhauer
Resonant optical pumping in dense atomic media is discussed, where the absorption length is less than the smallest characteristic dimension of the sample. It is shown that reabsorp…
Observation of a Coherence Length Effect in Exclusive Rho^0 Electroproduction
K. Ackerstaff
Exclusive incoherent electroproduction of the rho^0(770) meson from 1H, 2H, 3He, and 14N targets has been studied by the HERMES experiment at squared four-momentum transfer Q**2>0.…
The peculiar motions of early-type galaxies in two distant regions - V. The Mg-sigma relation, age and metallicity
Matthew Colless, David Burstein, Roger L. Davies +3
We examine the Mg-sigma relation for early-type galaxies in the EFAR sample and its dependence on cluster properties. A maximum likelihood fit gives global Mg-sigma relations of Mg…
Coherent population transfer beyond the adiabatic limit: generalized matched pulses and higher-order trapping states
M. Fleischhauer, R. Unanyan, B. W. Shore +1
We show that the physical mechanism of population transfer in a 3-level system with a closed loop of coherent couplings (loop-STIRAP) is not equivalent to an adiabatic rotation of…
Polarized top decay into polarized W: t(up)->W(up) + b at O(alpha_s)
M. Fischer, S. Groote, J. G. Körner +2
We consider the decay of a polarized top quark into a polarized W-boson plus a bottom quark, followed by the decay of the W-boson into a pair of leptons or quarks. The polar angle…
Flat steady states in stellar dynamics - existence and stability
Gerhard Rein
We consider a special case of the three dimensional Vlasov-Poisson system where the particles are restricted to a plane, a situation that is used in astrophysics to model extremely…
D3-branes dynamics and black holes
M. Bertolini, P. Fre`, R. Iengo +1
Using the D3-brane as the fundamental tool, we adress two aspects of D-branes physics. The first regards the interaction between two electromagnetic dual D-branes in 10 dimensions.…