7 citations · 8 across the 8 of their papers we have counts for
8 papers
Classification of non-Fermi liquids and universal superconducting fluctuations
Shubham Kukreja, Dawson M. Willerton, Sung-Sik Lee
In quantum critical metals, a plethora of different non-Fermi liquids arises depending on the nature of critical fluctuations coupled to Fermi surfaces. In this paper, we classify…
Emergent time and more from wavefunction collapse in general relativity
Sung-Sik Lee
In this paper, we further develop a recently proposed theory of time based on wavefunction collapse in general relativity. It is based on the postulations that quantum states, whic…
Quantum criticality in cuprate superconductors revealed by optical conductivity measurement
Hwiwoo Park, Sung-Sik Lee, G. D. Gu +1
The ubiquitous temperature ()-linear behaviour of the transport scattering rate in the normal state of strongly correlated electron systems is called strange metallicity \cite{z…
Ultraviolet/infrared mixing-driven suppression of Kondo screening in the antiferromagnetic quantum critical metal
Francisco Borges, Peter Lunts, Sung-Sik Lee
We study a magnetic impurity immersed in the two-dimensional antiferromagnetic quantum critical metal (AFQCM), using the field-theoretic functional renormalization group. Critical…
A theory of time based on wavefunction collapse
Sung-Sik Lee
We propose that moments of time arise through the failed emergence of the temporal diffeomorphism as gauge symmetry, and that the passage of time is a continual process of an insta…
Dynamical kinetic energy quenching in the antiferromagnetic quantum critical metals
Anton Borissov, Vladimir Calvera, Sung-Sik Lee
We study the dynamics of critical spin fluctuations and hot electrons at the metallic antiferromagnetic quantum critical points with and spin symmetries, building upon…
Space of non-Fermi liquids
Shubham Kukreja, Afshin Besharat, Sung-Sik Lee
In metals, low-energy effective theories are characterized by a set of coupling functions. Among them, the angle-dependent Fermi momentum specifies the size and shape of Fermi surf…
Anomalous quasiparticle lifetime in geometric quantum critical metals
Hao Song, Han Ma, Catherine Kallin +1
Metals can undergo geometric quantum phase transitions where the local curvature of the Fermi surface changes sign without a change in symmetry or topology. At the inflection point…