155 citations · 257 across the 9 of their papers we have counts for
9 papers
Precision measurements of the zero temperature dielectric constant and density of liquid He
R. T. Learn, E. Varga, V. Vadakkumbatt +1
The resonant frequencies of three-dimensional microwave cavities are explicitly dependent on the dielectric constant of the material filling the cavity, making them an ideal system…
Surface-dominated finite size effects in nanoconfined superfluid helium
E. Varga, C. Undershute, J. P. Davis
Superfluid He (He-II) is a widely studied model system for exploring finite-size effects in strongly confined geometries. Here, we study He-II confined in mm-scale channels of…
Dynamical Backaction Magnomechanics
C. A. Potts, E. Varga, V. A. S. V. Bittencourt +2
Dynamical backaction resulting from radiation pressure forces in optomechanical systems has proven to be a versatile tool for manipulating mechanical vibrations. Notably, dynamical…
Observation of bistable turbulence in quasi-two-dimensional superflow
E. Varga, V. Vadakkumbatt, A. J. Shook +2
Turbulent flow restricted to two dimensions can spontaneously develop order on large scales, defying entropy expectations and in sharp contrast with turbulence in three dimensions…
Intermittency enhancement in quantum turbulence
Emil Varga, Jian Gao, Wei Guo +1
Intermittency is a hallmark of turbulence, which exists not only in turbulent flows of classical viscous fluids but also in flows of quantum fluids such as superfluid He. Despi…
Transition to turbulence and streamwise inhomogeneity of vortex tangle in thermal counterflow
E. Varga, S. Babuin, V. S. L'vov +2
We report preliminary results of the complementary experimental and numerical studies on spatiotemporal tangle development and streamwise vortex line density (VLD) distribution in…
Quantum Turbulence of Bellows-Driven 4He Superflow: Decay
Simone Babuin, Emil Varga, William F. Vinen +1
We report on studies of quantum turbulence with second-sound in superfluid 4He in which the turbulence is generated by the flow of the superfluid component through a wide square ch…
Coexistence and interplay of quantum and classical turbulence in superfluid He-4: Decay, velocity decoupling and counterflow energy spectra
S. Babuin, V. S. L'vov, A. Pomyalov +2
We report complementary experimental, numerical and theoretical study of turbulent coflow, counterflow and pure superflow of superfluid He-4 in a channel, resulting in a physically…
Backreaction of tracer particles on vortex tangle in helium II counterflow
E. Varga, C. F. Barenghi, Y. A. Sergeev +1
We report computer simulations of the interaction of seeding particles with quantized vortices and with the normal fluid flow in thermal counterflow of superfluid He. We show t…