180 citations · 1.3k across the 62 of their papers we have counts for
48 papers · 1 filter
Logarithmic singularity in a dynamical quantum phase transition for free fermions
Yasser Bezzaz, Dimitri M. Gangardt, Pavel L. Krapivsky +3
We study the Loschmidt echo in a system of N non-interacting spinless lattice fermions released from a double-domain-wall initial state. In the large-N limit, the return probabilit…
Expansion of a free Fermi gas released from an isotropic trapping potential
J M Luck, P L Krapivsky
We consider a system of non-interacting fermions prepared in the many-body ground state of an isotropic trapping potential in any dimension, and investigate the ballistic expansion…
The Riviera model with egoistical settlers
P. L. Krapivsky
The Riviera model mimics a densifying settlement along the coastline. In the lattice version, houses are built sequentially in empty sites with the constraint that every newly buil…
Aggregation-Fragmentation Processes with Broken Detailed Balance
P. L. Krapivsky
We study aggregation-fragmentation processes in which pairs of clusters can aggregate, and each cluster can break into two fragments. If the rates of aggregation and fragmentation…
Impurity dynamics in a zero-temperature gas
Umesh Kumar, Abhishek Dhar, P. L. Krapivsky
If energy is suddenly released in a localized region of space uniformly filled with identical stationary hard spheres, the outcome is a blast with an asymptotically spherical shock…
Finite-time blowup of a Brownian particle in a repulsive potential
P. L. Krapivsky, Baruch Meerson
We consider a Brownian particle performing an overdamped motion in a power-law repulsive potential. If the potential grows with the distance faster than quadratically, the particle…