14.2k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- University of GlasgowGB308 papers
- Centre National de la Recherche ScientifiqueFR287 papers
- Massachusetts Institute of TechnologyUS234 papers
- California Institute of TechnologyUS233 papers
- Rutherford Appleton LaboratoryGB231 papers
- Stanford UniversityUS231 papers
- Universitat de les Illes BalearsES230 papers
- Australian National UniversityAU229 papers
- University of SouthamptonGB228 papers
- Leibniz University HannoverDE227 papers
- University of MichiganUS226 papers
- University of BirminghamGB225 papers
24 papers · 1 filter
Single-impulse magnetic focusing of launched cold atoms
Matthew J Pritchard, Aidan S Arnold, David A Smith +1
We have theoretically investigated the focusing of a launched cloud of cold atoms. Time-dependent spatially-varying magnetic fields are used to impart impulses leading to a three-d…
VLT-ISAAC 3-5 micron spectroscopy of embedded young low-mass stars. III. Intermediate-mass sources in Vela
W. F. Thi, E. F. van Dishoeck, E. Dartois +5
We performed a spectroscopic survey toward five intermediate-mass class I YSOs located in the Southern Vela molecular cloud in the L and M bands at resolving powers 600-800 up to 1…
Strictly stable distributions on convex cones
Youri Davydov, Ilya Molchanov, Sergei Zuyev
Using the LePage representation, a strictly stable random element in a Banach space with can be represented as a sum of points of a Poisson process. This point process…
Angular minimum uncertainty states with large uncertainties
Joerg B. Goette, Paul M. Radmore, Roberta Zambrini +1
The uncertainty relation for angle and angular momentum has a lower bound which depends on the form of the state. Surprisingly, this lower bound can be very large. We derive the st…
Double-impulse magnetic focusing of launched cold atoms
Aidan S Arnold, Matthew J Pritchard, David A Smith +1
We have theoretically investigated 3D focusing of a launched cloud of cold atoms using a pair of magnetic lens pulses (the alternate-gradient method). Individual lenses focus radia…
Light induced effective magnetic fields for ultra-cold atoms in planar geometries
G. Juzeliunas, J. Ruseckas, P. Ohberg +1
We propose a scheme to create an effective magnetic field for ultra-cold atoms in a planar geometry. The set-up allows the experimental study of classical and quantum Hall effects…
Ionisation state, excited populations and emission of impurities in dynamic finite density plasmas. I: The generalised collisional-radiative model for light elements
H. P. Summers, W. J. Dickson, M. G. O'Mullane +6
The paper presents an integrated view of the population structure and its role in establishing the ionisation state of light elements in dynamic, finite density, laboratory and ast…
Effective magnetic fields induced by EIT in ultra-cold atomic gases
G. Juzeliunas, J. Ruseckas, P. Ohberg
We study the influence of two resonant laser beams (to be referred to as the control and probe beams) on the centre of mass motion of ultra-cold atoms characterised by three energy…
Joint measurements of spin, operational locality and uncertainty
Erika Andersson, Stephen M. Barnett, Alain Aspect
Joint, or simultaneous, measurements of non-commuting observables are possible within quantum mechanics, if one accepts an increase in the variances of the jointly measured observa…
Joint measurements and Bell inequalities
Wonmin Son, Erika Andersson, Stephem M. Barnett +1
Joint quantum measurements of non-commuting observables are possible, if one accepts an increase in the measured variances. A necessary condition for a joint measurement to be poss…
Quantum nature of laser light
David T. Pegg, John Jeffers
All compositions of a mixed-state density operator are equivalent for the prediction of the probabilities of future outcomes of measurements. For retrodiction, however, this is not…
Filled Landau levels in neutral quantum gases
P. Ohberg, G. Juzeliunas, J. Ruseckas +1
We consider the signatures of the Integer Quantum Hall Effect in a degenerate gas of electrically neutral atomic fermions. An effective magnetic field is achieved by applying two i…
Angular EPR paradox
Joerg B Goette, Sonja Franke-Arnold, Stephen M. Barnett
The violation of local uncertainty relations is a valuable tool for detecting entanglement, especially in multi-dimensional systems. The orbital angular momentum of light provides…
Large-uncertainty intelligent states for angular momentum and angle
Joerg B. Goette, Roberta Zambrini, Sonja Franke-Arnold +1
The equality in the uncertainty principle for linear momentum and position is obtained for states which also minimize the uncertainty product. However, in the uncertainty relation…
A large magnetic storage ring for Bose-Einstein condensates
A. S. Arnold, C. S. Garvie, E. Riis
Cold atomic clouds and Bose-Einstein condensates have been stored in a 10cm diameter vertically-oriented magnetic ring. An azimuthal magnetic field enables low-loss propagation of…
Resolution in rotation measurements
Stephen M Barnett, Roberta Zambrini
The limiting resolution in optical interferometry is set by the number of photons used, with the functional dependence determined by the state of light that is prepared. We conside…
Coupled mode theory for photonic band-gap inhibition of spatial instabilities
Damia Gomila, Gian-Luca Oppo
We study the inhibition of pattern formation in nonlinear optical systems using intracavity photonic crystals. We consider mean field models for single and doubly degenerate optica…
Convection-induced nonlinear-symmetry-breaking in wave mixing
Roberta Zambrini, Maxi San Miguel, Celine Durniak +1
We show that the combined action of diffraction and convection (walk-off) in wave mixing processes leads to a nonlinear-symmetry-breaking in the generated traveling waves. The dyna…
Cavity state preparation using adiabatic transfer
Jonas Larson, Erika Andersson
We show how to prepare a variety of cavity field states for multiple cavities. The state preparation technique used is related to the method of stimulated adiabatic Raman passage o…
Non-Abelian gauge potentials for ultra-cold atoms with degenerate dark states
J. Ruseckas, G. Juzeliunas, P. Oehberg +1
We show that the adiabatic motion of ultra-cold, multi-level atoms in spatially varying laser fields can give rise to effective non-Abelian gauge fields if degenerate adiabatic eig…
Convective instability induced by nonlocality in nonlinear diffusive systems
Francesco Papoff, Roberta Zambrini
We consider a large class of nonlinear diffusive systems with nonlocal coupling. By using a non-perturbative analytical approach we are able to determine the convective and absolut…
A new approach to the Sachs-Wolfe effect
J. Tito Mendonca, Robert Bingham, Charles H. -T. Wang
We present a new approach to the Sachs-Wolfe effect, which is based on the dynamics of photons in a space and time varying gravitational field. We consider the influence of plasma…
A kinetic approach to Bose-Einstein condensates: self-phase modulation and Bogoliubov oscillations
J. T. Mendonca, R. Bingham, P. K. Shukla
A kinetic approach to the Bose-Einstein condensates (BECs) is proposed, based on the Wigner-Moyal equation (WME). In the quasi-classical limit, the WME reduces to the particle numb…
Quantum theory of SASE FEL
R. Bonifacio, N. Piovella, G. R. M. Robb
We describe a free-electron laser (FEL) in the Self Amplified Spontaneous Emission (SASE) regime quantizing the electron motion and taking into account propagation effects. We demo…