activity
20192026
most citedAverage Symmetry-Protected Topological Phases

116 citations · 370 across the 11 of their papers we have counts for

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7 papers · 1 filter

cond-mat.str-el2024

Lieb-Schultz-Mattis Theorem with Long-Range Interactions

Ruochen Ma

We prove the Lieb-Schultz-Mattis theorem in -dimensional spin systems exhibiting spin rotation and lattice translation symmetries in the presence of local interactio…

cond-mat.str-el2023★ 39 cited

Topological Phases with Average Symmetries: the Decohered, the Disordered, and the Intrinsic

Ruochen Ma, Jian-Hao Zhang, Zhen Bi +2

Global symmetries greatly enrich the landscape of topological quantum phases, playing an essential role from topological insulators to fractional quantum Hall effect. Topological p…

cond-mat.str-el2022★ 116 cited

Average Symmetry-Protected Topological Phases

Ruochen Ma, Chong Wang

Symmetry-protected topological (SPT) phases are many-body quantum states that are topologically nontrivial as long as the relevant symmetries are unbroken. In this work we show tha…

cond-mat.str-el2021★ 8 cited

Emergent anomaly of Fermi surfaces: a simple derivation from Weyl fermions

Ruochen Ma, Chong Wang

The Fermi liquid has an emergent low-energy symmetry that corresponds to charge conservation at each momentum on the Ferm surface. Recently Else, Thorngren and Senthil (ETS) argued…

cond-mat.str-el2021★ 28 cited

Edge physics at the deconfined transition between a quantum spin Hall insulator and a superconductor

Ruochen Ma, Liujun Zou, Chong Wang

We study the edge physics of the deconfined quantum phase transition (DQCP) between a spontaneous quantum spin Hall (QSH) insulator and a spin-singlet superconductor (SC). Although…

cond-mat.str-el2020★ 10 cited

Emergent QCD Quantum Phase Transitions of Fractional Chern Insulators

Ruochen Ma, Yin-Chen He

Motivated by the recent work of QED-Chern-Simons quantum critical points of fractional Chern insulators (Phys. Rev. X \textbf{8}, 031015, (2018)), we study its non-Abelian gene…

cond-mat.str-el2019★ 95 cited

A theory of deconfined pseudo-criticality

Ruochen Ma, Chong Wang

It has been proposed that the deconfined criticality in -- the quantum phase transition between a Neel anti-ferromagnet and a valence-bond-solid (VBS) -- may actually be p…