Laboratory simulation of cosmic string formation in the early Universe using superfluid 3He
TOPOLOGICAL defects in the geometry of space–time (such as cosmic strings) may have
played an important role in the evolution of the early Universe, by supplying initial density …
played an important role in the evolution of the early Universe, by supplying initial density …
QUEST-DMC superfluid He detector for sub-GeV dark matter
The focus of dark matter searches to date has been on Weakly Interacting Massive Particles
(WIMPs) in the GeV/c 2-TeV/c 2 mass range. The direct, indirect and collider searches in this …
(WIMPs) in the GeV/c 2-TeV/c 2 mass range. The direct, indirect and collider searches in this …
Generation and Detection of Quantum Turbulence in Superfluid
SN Fisher, AJ Hale, AM Guénault, GR Pickett - Physical Review Letters, 2001 - APS
We describe the first direct observations of turbulence in superfluid 3 He− B. The turbulence
is generated by a vibrating-wire resonator driven at velocities exceeding the pair-breaking …
is generated by a vibrating-wire resonator driven at velocities exceeding the pair-breaking …
Potential Dark Matter Detector? The Detection of Low Energy Neutrons by Superfluid He
DI Bradley, YM Bunkov, DJ Cousins, MP Enrico… - Physical review …, 1995 - APS
Using an existing experiment we have demonstrated in a pilot study that superfluid 3 He at
100 μK can be used as a nuclear recoil detector sensitive to neutron and γ interactions …
100 μK can be used as a nuclear recoil detector sensitive to neutron and γ interactions …
Direct measurement of the energy dissipated by quantum turbulence
DI Bradley, SN Fisher, AM Guénault, RP Haley… - Nature Physics, 2011 - nature.com
The lack of a general solution to the governing Navier–Stokes equations means that there is
no fundamental theory of turbulence. In the simpler case of pure quantum turbulence, the …
no fundamental theory of turbulence. In the simpler case of pure quantum turbulence, the …
Fluctuations and Correlations of Pure Quantum Turbulence in Superfluid
DI Bradley, SN Fisher, AM Guénault, RP Haley… - Physical review …, 2008 - APS
We describe the first measurements of line-density fluctuations and spatial correlations of
quantum turbulence in superfluid He 3-B. All of the measurements are performed in the low …
quantum turbulence in superfluid He 3-B. All of the measurements are performed in the low …
The Damping of a Quartz Tuning Fork in Superfluid 3He-B at Low Temperatures
DI Bradley, P Crookston, SN Fisher, A Ganshin… - Journal of Low …, 2009 - Springer
We have measured the damping on a quartz tuning fork in the B-phase of superfluid 3 He at
low temperatures, below 0.3 T c. We present extensive measurements of the velocity …
low temperatures, below 0.3 T c. We present extensive measurements of the velocity …
Temperature scale and heat capacity of superfluid in the range
We have recently performed accurate energy calibrations of a superfluid 3 He− B bolometer
at very low temperatures. The calibration process provides a measure of the heat capacity of …
at very low temperatures. The calibration process provides a measure of the heat capacity of …
Breaking the superfluid speed limit in a fermionic condensate
DI Bradley, SN Fisher, AM Guénault, RP Haley… - Nature Physics, 2016 - nature.com
Coherent condensates appear as emergent phenomena in many systems,,,,,,,. They share
the characteristic feature of an energy gap separating the lowest excitations from the …
the characteristic feature of an energy gap separating the lowest excitations from the …
Direct observation of the Andreev reflection of a beam of excitations in superfluid
MP Enrico, SN Fisher, AM Guénault, GR Pickett… - Physical review …, 1993 - APS
We describe the first direct measurement of the Andreev reflection of a beam of quasiparticle
excitations in the B phase of superfluid He 3 in the ballistic regime (T/T c≤ 0.2). The beam is …
excitations in the B phase of superfluid He 3 in the ballistic regime (T/T c≤ 0.2). The beam is …