Unconventional discontinuous transitions in a two-dimensional system with spin and valley degrees of freedom
We analyze the transition into the most favorable ordered state for a system of 2D fermions
with spin and valley degrees of freedom. We show that for a range of rotationally invariant …
with spin and valley degrees of freedom. We show that for a range of rotationally invariant …
Definition and classification of Fermi surface anomalies
We propose that the Fermi surface anomaly of symmetry group G in any dimension is
universally classified by G-symmetric interacting fermionic symmetry-protected topological …
universally classified by G-symmetric interacting fermionic symmetry-protected topological …
Unconventional discontinuous transitions in a 2D system with spin and valley degrees of freedom
We analyze the transition into the most favorable ordered state for a system of 2D fermions
with spin and valley degrees of freedom. We show that for a range of rotationally invariant …
with spin and valley degrees of freedom. We show that for a range of rotationally invariant …
Projective fixed points for non-Fermi liquids: A case study of the Ising-nematic quantum critical metal
S Kukreja, A Besharat, SS Lee - Physical Review B, 2024 - APS
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 …
Among them, the angle-dependent Fermi momentum specifies the size and shape of Fermi …
Symmetry and causality constraints on Fermi liquids
LV Delacrétaz, SD Chowdhury, U Mehta - arXiv preprint arXiv:2501.02073, 2025 - arxiv.org
We investigate symmetry and causality constraints on interacting Fermi liquids. Whereas
Galilean or Lorentz boost symmetry leads to a well-known constraint on the first Landau …
Galilean or Lorentz boost symmetry leads to a well-known constraint on the first Landau …
Partial Renormalization of Quasiparticle Interactions
K Chen - arXiv preprint arXiv:2404.15844, 2024 - arxiv.org
Nonlocal effective interactions are inherent to non-relativistic quantum many-body systems,
but their systematic resummation poses a significant challenge known as the``vertex …
but their systematic resummation poses a significant challenge known as the``vertex …
Space of non-Fermi liquids
S Kukreja, A Besharat, SS Lee - arXiv preprint arXiv:2405.09450, 2024 - arxiv.org
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 …
Among them, the angle-dependent Fermi momentum specifies the size and shape of Fermi …