440 citations · 2.1k across the 29 of their papers we have counts for
6 papers · 1 filter
An obstacle to sub-AdS holography for SYK-like models
Pengfei Zhang, Yingfei Gu, Alexei Kitaev
We argue that "stringy" effects in a putative gravity-dual picture for SYK-like models are related to the branching time, a kinetic coefficient defined in terms of the retarded ker…
Floquet conformal field theories with generally deformed Hamiltonians
Ruihua Fan, Yingfei Gu, Ashvin Vishwanath +1
In this work, we study non-equilibrium dynamics in Floquet conformal field theories (CFTs) in 1+1D, in which the driving Hamiltonian involves the energy-momentum density spatially…
Periodically and Quasi-periodically Driven Dynamics of Bose-Einstein Condensates
Pengfei Zhang, Yingfei Gu
We study the quantum dynamics of Bose-Einstein condensates when the scattering length is modulated periodically or quasi-periodically in time within the Bogoliubov framework. For t…
Many-body quantum dynamics slows down at low density
Xiao Chen, Yingfei Gu, Andrew Lucas
We study quantum many-body systems with a global U(1) conservation law, focusing on a theory of interacting fermions with charge conservation, or interacting spins with one…
Periodically, Quasi-periodically, and Randomly Driven Conformal Field Theories: Part I
Xueda Wen, Ruihua Fan, Ashvin Vishwanath +1
In this paper and its sequel, we study non-equilibrium dynamics in driven 1+1D conformal field theories (CFTs) with periodic, quasi-periodic, and random driving. We study a soluble…
Linear in temperature resistivity in the limit of zero temperature from the time reparameterization soft mode
Haoyu Guo, Yingfei Gu, Subir Sachdev
The most puzzling aspect of the 'strange metal' behavior of correlated electron compounds is that the linear in temperature resistivity often extends down to low temperatures, lowe…