11 citations · 27 across the 6 of their papers we have counts for
6 papers
Ideal Optical Flux Lattices
Ophelia Evelyn Sommer, Nigel R. Cooper
The realization of fractional quantum Hall (FQH) states in cold atomic gases is a long-standing goal in quantum simulation. Established approaches, including rapidly rotating gases…
Topological constraint on crystalline current
Tomohiro Soejima, Junkai Dong, Ophelia Evelyn Sommer +2
How much current does a sliding electron crystal carry? The answer to this simple question has important implications for the dynamic properties of the crystal, such as the frequen…
Angular Interplay of Nematicity, Superconductivity, and Strange Metallicity in a Moiré Flat Band
Naiyuan J. Zhang, Pavel A. Nosov, Ophelia Evelyn Sommer +5
Superconductivity in strongly correlated electron systems frequently exhibits broken rotational symmetry, raising fundamental questions about the underlying order parameter symmetr…
Phonons in Electron Crystals with Berry Curvature
Junkai Dong, Ophelia Evelyn Sommer, Tomohiro Soejima +2
Recent advances in 2D materials featuring nonzero Berry curvature have inspired extensions of the Wigner crystallization paradigm. This paper derives a low-energy effective theory…
Higher Berry Curvature from the Wave function II: Locally Parameterized States Beyond One Dimension
Ophelia Evelyn Sommer, Ashvin Vishwanath, Xueda Wen
We propose a systematic wave function based approach to construct topological invariants for families of lattice systems that are short-range entangled using local parameter spaces…
Higher Berry Curvature from the Wave Function I: Schmidt Decomposition and Matrix Product States
Ophelia Evelyn Sommer, Xueda Wen, Ashvin Vishwanath
Higher Berry curvature (HBC) is the proposed generalization of Berry curvature to infinitely extended systems. Heuristically HBC captures the flow of local Berry curvature in a sys…