39 citations · 136 across the 9 of their papers we have counts for
8 papers
Anomalous Attenuation of Transverse Sound in 3He
J. P. Davis, J. Pollanen, H. Choi +3
We present the first measurements of the attenuation of transverse sound in superfluid 3He-B. We use fixed path length interferometry combined with the magneto-acoustic Faraday eff…
High frequency sound in superfluid 3He-B
J. P. Davis, H. Choi, J. Pollanen +1
We present measurements of the absolute phase velocity of transverse and longitudinal sound in superfluid 3He-B at low temperature, extending from the imaginary squashing mode to n…
Discovery of an Excited Pair State in Superfluid 3He
J. P. Davis, J. Pollanen, H. Choi +2
Order parameter collective modes are the fingerprint of a condensed phase. The spectroscopy of these modes in superfluid He and unconventional superconductors can provide key i…
Globally Anisotropic High Porosity Silica Aerogels
J. Pollanen, K. Shirer, S. Blinstein +5
We discuss two methods by which high porosity silica aerogels can be engineered to exhibit global anisotropy. First, anisotropy can be introduced with axial strain. In addition, in…
Collective Modes and f-wave Pairing Interactions in Superfluid 3He
J. P. Davis, H. Choi, J. Pollanen +1
Precision measurements of a collective mode in superfluid 3He B are sensitive to quasiparticle and f wave pairing interactions. Measurements were performed at various pressures usi…
Acoustic Spectroscopy of Superfluid 3He in Aerogel
J. P. Davis, H. Choi, J. Pollanen +1
We have designed an experiment to study the role of global anisotropic quasiparticle scattering on the dirty aerogel superfluid 3He system. We observe significant regions of two st…