12 citations · 12 across the 6 of their papers we have counts for
6 papers
Superconductivity from interband coupling to ferroelectric quantum critical fluctuations in two dimensions
Sudip Kumar Saha, Jonathan Ruhman, Avraham Klein
Soft critical fluctuations associated with ferroelectric quantum phase transitions are typically transverse owing to their polar nature. This implies that the conventional density-…
Interlayer Charge-Transfer Ferroelectric Fluctuations as a Pairing Mechanism in van der Waals Superconductors
Ankan Biswas, Jagannath Sutradhar, Sudip Kumar Saha +2
Signatures of unconventional superconductivity have been reported in a wide range of van der Waals (vdW) materials. However, their microscopic origin remains unclear due to competi…
Intertwined geometries in collective modes of two dimensional Dirac fermions
Ankan Biswas, Avraham Klein
It is well known that the time-dependent response of a correlated system can be inferred from its spectral correlation functions. As a textbook example, the zero sound collective m…
The Smearing of Quasi-Particles: Signatures in the Entanglement Entropy of Excited Many-Particle Systems
Jagannath Sutradhar, Jonathan Ruhman, Avraham Klein +2
The entanglement spectrum serves as a powerful tool for probing the structure and dynamics of quantum many-body systems, revealing key information about symmetry, topology, and exc…
The internal structure of a vortex in a two-dimensional superfluid with long healing length and its implications
A. Klein, O. Agam, I. Aleiner
We analyze the motion of quantum vortices in a two-dimensional spinless superfluid within Popov's hydrodynamic description. In the long healing length limit (where a large number o…
Self-consistent theory of large amplitude collective motion: Applications to approximate quantization of non-separable systems and to nuclear physics
G. Do Dang, A. Klein, N. R. Walet
The goal of the present account is to review our efforts to obtain and apply a ``collective'' Hamiltonian for a few, approximately decoupled, adiabatic degrees of freedom, starting…