5k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Centre National de la Recherche ScientifiqueFR339 papers
- European Southern ObservatoryCL298 papers
- Center for Astrophysics Harvard & SmithsonianUS294 papers
- University of CambridgeGB274 papers
- Osservatorio Astronomico di PadovaIT271 papers
- University of WarwickGB256 papers
- Stockholm UniversitySE237 papers
- Max Planck Institute for AstrophysicsDE213 papers
- Las Cumbres Observatory Global Telescope NetworkUS211 papers
- AlbaNovaSE210 papers
- Space Telescope Science InstituteUS208 papers
- University of St AndrewsGB193 papers
24 papers · 1 filter
Optimal conclusive teleportation of a d-dimensional unknown state
W. Son, Jinhyoung Lee, M. S. Kim +1
We formulate a conclusive teleportation protocol for a system in d-dimensional Hilbert space utilizing the positive operator valued measurement at the sending station. The conclusi…
Optical and Infrared Spectroscopy of the type IIn SN 1998S : Days 3-127
A. Fassia, W. P. S. Meikle, N. Chugai +14
We present contemporary infrared and optical spectroscopic observations of the type IIn SN 1998S for the period between 3 and 127 days after discovery. In the first week the spectr…
Chemical abundances in the inner 5 kpc of the Galactic disk
S. J. Smartt, K. A. Venn, P. L. Dufton +3
High-resolution, high signal-to-noise spectral data are presented for four young B-type stars lying towards the Galactic Centre. Determination of their atmospheric parameters from…
Chemical abundances and winds of massive stars in M31: a B-type supergiant and a WC star in OB10
S. J. Smartt, P. A. Crowther, P. L. Dufton +5
We present high quality spectroscopic data for two massive stars in the OB10 association of M31, OB10-64 (B0Ia) and OB10-WR1 (WC6). Medium resolution spectra of both stars were obt…
Optimal basis set for electronic structure calculations in periodic systems
Sandro Scandolo, Jorge Kohanoff
An efficient method for calculating the electronic structure of systems that need a very fine sampling of the Brillouin zone is presented. The method is based on the variational op…
Interstellar X-ray Absorption Spectroscopy of Oxygen, Neon, and Iron with the Chandra LETGS Spectrum of X0614+091
Frits Paerels, A. C. Brinkman, R. L. J. van der Meer +8
We find resolved interstellar O K, Ne K, and Fe L absorption spectra in the Chandra Low Energy Transmission Grating Spectrometer spectrum of the low mass X-ray binary X0614+091. We…
Magnetic Activity in Stars, Discs and Quasars
Donald Lynden-Bell
Although magnetic fields in interstellar matter were postulated almost fifty years ago, magnetohydrodynamic theory was then much hampered by our inability to see what the magnetic…
An Early-Time Infrared and Optical Study of the Type Ia Supernova 1998bu in M96
M. Hernandez, W. P. S. Meikle, A. Aparicio +22
We present first-season infrared (IR) and optical photometry and spectroscopy of the Type Ia Supernova 1998bu in M96. We also report optical polarimetry of this event. SN1998bu is…
Pair production and electron capture in relativistic heavy-ion collisions
R. J. S. Lee, J. V. Mullan, J. F. McCann +1
Results are presented for simulations of electron-positron pair production in relativistic heavy-ion collisions leading to electron capture and positron ejection. We apply a two-ce…
Optical and Infrared photometry of the type IIn SN 1998S:Days 11-146
A. Fassia, W. P. S. Meikle, W. D. Vacca +1
We present contemporaneous optical and infrared photometric observations of the type IIn SN 1998S covering the period between 11 and 146 days after discovery. The infrared data con…
Radial velocities of pulsating subdwarf B stars: KPD 2109+4401 and PB 8783
Simon Jeffery, Don Pollacco
High-speed spectroscopy of two pulsating subdwarf B stars, KPD 2109+4401 and PB 8783, is presented. Radial motions are detected with the same frequencies as reported from photometr…
Asymmetric quantum channel for quantum teleportation
M. S. Kim, Jinhyoung Lee
There are a few obstacles, which bring about imperfect quantum teleportation of a continuous variable state, such as unavailability of maximally entangled two-mode squeezed states,…
Normalizers of Operator Algebras and Reflexivity
A. Katavolos, I. G. Todorov
The set of normalizers between von Neumann (or, more generally, reflexive) algebras A and B, (that is, the set of all operators x such that xAx* is a subset of B and x*Bx is a subs…
Vortex shedding and drag in dilute Bose-Einstein condensates
T. Winiecki, B. Jackson, J. F. McCann +1
Above a critical velocity, the dominant mechanism of energy transfer between a moving object and a dilute Bose-Einstein condensate is vortex formation. In this paper, we discuss th…
Interference-induced gain in Autler-Townes doublet of a V-type atom in a cavity
Peng Zhou, S. Swain, L. You
We study the Autler-Townes spectrum of a V-type atom coupled to a single-mode, frequency-tunable cavity field at finite termperature, with a pre-selected polarization in the bad ca…
Cavity induced modifications to the resonance fluorescence and probe absorption of a laser-dressed V atom
Jin-Sheng Peng, Gao-Xiang Li, Peng Zhou +1
A cavity-modified master equation is derived for a coherently driven, V-type three-level atom coupled to a single-mode cavity in the bad cavity limit. We show that population inver…
Transfer of nonclassical features in quantum teleportation via a mixed quantum channel
Jinhyoung Lee, M. S. Kim, Hyunseok Jeong
Quantum teleportation of a continuous-variable state is studied for the quantum channel of a two-mode squeezed vacuum influenced by a thermal environment. Each mode of the squeezed…
Dynamics of Nonlocality for A Two-Mode Squeezed State in Thermal Environment
Hyunseok Jeong, Jinhyoung Lee, M. S. Kim
We investigate the time evolution of nonlocality for a two-mode squeezed state in the thermal environment. The initial two-mode pure squeezed state is nonlocal with a stronger nonl…
Partial Teleportation of Entanglement in the Noisy Environment
Jinhyoung Lee, M. S. Kim, Y. J. Park +1
Partial teleportation of entanglement is to teleport one particle of an entangled pair through a quantum channel. This is conceptually equivalent to quantum swapping. We consider t…
WR146 - observing the OB-type companion
Sean M. Dougherty, P. M. Williams, D. L. Pollacco
We present new radio and optical observations of the colliding-wind system WR146 aimed at understanding the nature of the companion to the Wolf-Rayet star and the collision of thei…
Test of quantum nonlocality for cavity fields
M. S. Kim, Jinhyoung Lee
There have been studies on formation of quantum-nonlocal states in spatially separate two cavities. We suggest a nonlocal test for the field prepared in the two cavities. We couple…
Relative energetics and structural properties of zirconia using a self-consistent tight-binding model
Stefano Fabris, Anthony T. Paxton, Michael W. Finnis
We describe an empirical, self-consistent, orthogonal tight-binding model for zirconia, which allows for the polarizability of the anions at dipole and quadrupole levels and for cr…
Search and Discovery Tools for Astronomical On-line Resources and Services
Daniel Egret, Robert J. Hanisch, Fionn Murtagh
A growing number of astronomical resources and data or information services are made available through the Internet. However valuable information is frequently hidden in a deluge o…
Equilibrium and adhesion of Nb/sapphire: the effect of oxygen partial pressure
Iskander G. Batirev, Ali Alavi, Michael W. Finnis
We derive a formula, useful for first-principles calculations, which relates the free energy of an oxide/metal interface to the free energies of surfaces and the work of separation…