413 citations · 1.3k across the 55 of their papers we have counts for
57 papers
Observation of self-oscillating supersonic flow across an acoustic horizon in two dimensions
Hikaru Tamura, Sergei Khlebnikov, Cheng-An Chen +1
Understanding the dynamics and stability of transonic flows in quantum fluids, especially for those beyond one spatial dimension, is an outstanding challenge, with applications ran…
Entanglement entropy of a superflow
Sergei Khlebnikov, Akhil Sheoran
We consider the theory of free Dirac fermions with a uniformly winding mass, , in two spacetime dimensions. This theory (which describes for instance a superconducti…
Observation of quasiparticle pair-production and quantum entanglement in atomic quantum gases quenched to an attractive interaction
Cheng-An Chen, Sergei Khlebnikov, Chen-Lung Hung
We report observation of quasiparticle pair-production and characterize quantum entanglement created by a modulational instability in an atomic superfluid. By quenching the atomic…
A universal holographic prediction for quantum-critical dynamics
Sergei Khlebnikov
We consider decay of an initial density or current perturbation at finite temperature near a quantum critical point with emergent Lorentz invariance. We argue that decay of per…
The first heat: production of entanglement entropy in the early universe
Sergei Khlebnikov, Akhil Sheoran
Entanglement entropy (EE) of a spatial region quantifies correlations between the region and its surroundings. For a free scalar in the adiabatic vacuum in de Sitter space the EE i…
Highly skewed current-phase relation in superconductor-topological insulator-superconductor Josephson junctions
Morteza Kayyalha, Aleksandr Kazakov, Ireneusz Miotkowski +3
Three-dimensional topological insulators (TI's) in proximity with superconductors are expected to exhibit exotic phenomena such as topological superconductivity (TSC) and Majorana…