6 papers
Influence of Harris disorder on quantum-critical superconductivity
Serhii Kryhin, Peter Lunts, Aavishkar A. Patel +2
In the Hertz theory, a quantum critical metal is described by the coupling of a Fermi surface to fluctuations of a Landau-damped bosonic field , which may represent either an o…
Completely-positive non-signalling non-Markovian dynamics
Serhii Kryhin, Vivishek Sudhir
We define non-Markovian quantum dynamics as evolution in which the current state depends on all past states, and completely characterize its structure under the assumptions of comp…
Forecasting in the presence of scale-free noise
Serhii Kryhin, Tatiana Mouzykantskii, Vivishek Sudhir
The extraction of signals from noise is a common problem in all areas of science and engineering. A particularly useful version is that of forecasting: determining a causal filter…
Strong non-linear response of strange metals
Serhii Kryhin, Subir Sachdev, Pavel A. Volkov
We show that nonlinear transport responses in strange metals are strong, larger by a factor of than in Fermi liquids. Within the two-dimensional Yukawa-Sachdev-Ye-Kitaev mo…
Distinguishable consequence of classical gravity on quantum matter
Serhii Kryhin, Vivishek Sudhir
What if gravity is classical? If true, a consistent co-existence of classical gravity and quantum matter requires that gravity exhibit irreducible fluctuations. These fluctuations…
Linear-in-temperature conductance in two-dimensional electron fluids
Serhii Kryhin, Qiantan Hong, Leonid Levitov
Linear temperature dependence of transport coefficients in metals is often ascribed to non-Fermi-liquid physics. Here we demonstrate the -linear behavior of nonlocal conductivit…