8 papers
Strange-metal behavior in a Fermi liquid with strange scatterers
Erez Berg, Gaël Grissonnanche, Steven A. Kivelson +4
A variety of low-temperature, normal-state properties of optimally and overdoped cuprate superconductors, including the DC and optical transport responses, are sufficiently anomalo…
Quantum-critical dynamics of a Josephson junction at the topological transition
Vladislav D. Kurilovich, Chaitanya Murthy, Pavel D. Kurilovich +3
We find the admittance of a Josephson junction at or near a topological transition. The dependence of the admittance on frequency and temperature at the critical point is un…
Energy spectrum and current-phase relation of a nanowire Josephson junction close to the topological transition
Chaitanya Murthy, Vladislav D. Kurilovich, Pavel D. Kurilovich +3
A semiconducting nanowire proximitized by an -wave superconductor can be tuned into a topological state by an applied magnetic field. This quantum phase transition is marked by…
Almost Perfect Metals in One Dimension
Chaitanya Murthy, Chetan Nayak
We show that a one-dimensional quantum wire with as few as 2 channels of interacting fermions can host metallic states of matter that are stable against all perturbations up to $q^…
Bounds on chaos from the eigenstate thermalization hypothesis
Chaitanya Murthy, Mark Srednicki
We show that the known bound on the growth rate of the out-of-time-order four-point correlator in chaotic many-body quantum systems follows directly from the general structure of o…
Structure of chaotic eigenstates and their entanglement entropy
Chaitanya Murthy, Mark Srednicki
We consider a chaotic many-body system (i.e., one that satisfies the eigenstate thermalization hypothesis) that is split into two subsystems, with an interaction along their mutual…