Publications (14)
A boundary element method for the solution of finite mobility ratio immiscible displacement in a Hele-Shaw cell
S. J. Jackson, D. Stevens, H. Power +1
In this paper, the interaction between two immiscible fluids with a finite mobility ratio is investigated numerically within a Hele-Shaw cell. Fingering instabilities initiated at…
First Searches for Optical Counterparts to Gravitational-wave Candidate Events
The LIGO Scientific Collaboration, the Virgo Collaboration, J. Aasi +904
During the LIGO and Virgo joint science runs in 2009-2010, gravitational wave (GW) data from three interferometer detectors were analyzed within minutes to select GW candidate even…
Application of a Hough search for continuous gravitational waves on data from the 5th LIGO science run
The LIGO Scientific Collaboration, The Virgo Collaboration, J. Aasi +876
We report on an all-sky search for periodic gravitational waves in the frequency range with the first derivative of frequency in the range $-8.9 \times 10^{-1…
Search for long-lived gravitational-wave transients coincident with long gamma-ray bursts
The LIGO Scientific Collaboration, the Virgo Collaboration, J. Aasi +875
Long gamma-ray bursts (GRBs) have been linked to extreme core-collapse supernovae from massive stars. Gravitational waves (GW) offer a probe of the physics behind long GRBs. We inv…
Specular reflection of matter waves from a rough mirror
V. Savalli, D. Stevens, J. Esteve +4
We have made a high resolution study of the specularity of the atomic reflection from an evanescent wave mirror using velocity selective Raman transitions. We have observed a doubl…
Searching for stochastic gravitational waves using data from the two co-located LIGO Hanford detectors
The LIGO Scientific Collaboration, the Virgo Collaboration, J. Aasi +873
Searches for a stochastic gravitational-wave background (SGWB) using terrestrial detectors typically involve cross-correlating data from pairs of detectors. The sensitivity of such…
Speed of ion trap quantum information processors
A. Steane, C. F. Roos, D. Stevens +4
We investigate theoretically the speed limit of quantum gate operations for ion trap quantum information processors. The proposed methods use laser pulses for quantum gates which e…
Resolved diffraction patterns from a reflection grating for atoms
J. Esteve, D. Stevens, V. Savalli +3
We have studied atomic diffraction at normal incidence from an evanescent standing wave with a high resolution using velocity selective Raman transitions. We have observed up to 3…
Dynamic wetting effects in finite mobility ratio Hele-Shaw flow
S. J. Jackson, D. Stevens, D. Giddings +1
In this paper we study the effects of dynamic wetting on the immiscible displacement of a high viscosity fluid subject to the radial injection of a less viscous fluid in a Hele-Sha…
Constraints on cosmic strings from the LIGO-Virgo gravitational-wave detectors
J. Aasi, J. Abadie, B. P. Abbott +873
Cosmic strings can give rise to a large variety of interesting astrophysical phenomena. Among them, powerful bursts of gravitational waves (GWs) produced by cusps are a promising o…
A directed search for continuous Gravitational Waves from the Galactic Center
The LIGO Scientific Collaboration, The Virgo Collaboration, J. Aasi +871
We present the results of a directed search for continuous gravitational waves from unknown, isolated neutron stars in the Galactic Center region, performed on two years of data fr…
Characterization of the LIGO detectors during their sixth science run
The LIGO Scientific Collaboration, The Virgo Collaboration, J. Aasi +867
In 2009-2010, the Laser Interferometer Gravitational-wave Observa- tory (LIGO) operated together with international partners Virgo and GEO600 as a network to search for gravitation…
Gravitational waves from known pulsars: results from the initial detector era
J. Aasi, J. Abadie, B. P. Abbott +892
We present the results of searches for gravitational waves from a large selection of pulsars using data from the most recent science runs (S6, VSR2 and VSR4) of the initial generat…
Simple experimental methods for trapped ion quantum processors
D. Stevens, J. Brochard, A. M. Steane
Two techniques are described that simplify the experimental requirements for measuring and manipulating quantum information stored in trapped ions. The first is a new technique usi…