Articles with "lieb schultz" as a keyword



Photo from wikipedia

Lieb–Schultz–Mattis Type Theorems for Quantum Spin Chains Without Continuous Symmetry

Sign Up to like & get
recommendations!
Published in 2019 at "Communications in Mathematical Physics"

DOI: 10.1007/s00220-019-03343-5

Abstract: We prove that a quantum spin chain with half-odd-integral spin cannot have a unique ground state with a gap, provided that the interaction is short ranged, translation invariant, and possesses time-reversal symmetry or $${\mathbb{Z}_{2} \times… read more here.

Keywords: schultz mattis; lieb schultz; quantum spin; mattis type ... See more keywords
Photo from wikipedia

Topological theory of Lieb-Schultz-Mattis theorems in quantum spin systems

Sign Up to like & get
recommendations!
Published in 2020 at "Physical Review B"

DOI: 10.1103/physrevb.101.224437

Abstract: Exploring the consequences of the arrangement of spins and its space-group symmetry, a systematic theory is given to determine under what circumstances the ground state of a quantum magnet must be a nontrivial quantum spin… read more here.

Keywords: theory; quantum spin; schultz mattis; lieb schultz ... See more keywords
Photo by photified from unsplash

Bootstrapping Lieb-Schultz-Mattis anomalies

Sign Up to like & get
recommendations!
Published in 2022 at "Physical Review B"

DOI: 10.1103/physrevb.107.205137

Abstract: We incorporate the microscopic assumptions that lead to a certain generalization of the Lieb-Schultz-Mattis (LSM) theorem for one-dimensional spin chains into the conformal bootstrap. Our approach accounts for the"LSM anomaly"possessed by these spin chains through… read more here.

Keywords: symmetry; lieb schultz; schultz mattis; bootstrap ... See more keywords
Photo from academic.microsoft.com

Lieb-Schultz-Mattis-type filling constraints in the 1651 magnetic space groups

Sign Up to like & get
recommendations!
Published in 2018 at "Physical Review B"

DOI: 10.1103/physrevb.97.165117

Abstract: We present the first systematic study of the filling constraints to realize a `trivial' insulator symmetric under magnetic space group $\mathcal{M}$. The filling $\nu$ must be an integer multiple of $m^{\mathcal{M}}$ to avoid spontaneous symmetry… read more here.

Keywords: space; schultz mattis; filling constraints; lieb schultz ... See more keywords
Photo from wikipedia

Twisted Boundary Condition and Lieb-Schultz-Mattis Ingappability for Discrete Symmetries.

Sign Up to like & get
recommendations!
Published in 2021 at "Physical review letters"

DOI: 10.1103/physrevlett.126.217201

Abstract: We discuss quantum many-body systems with lattice translation and discrete on-site symmetries. We point out that, under a boundary condition twisted by a symmetry operation, there is an exact degeneracy of ground states if the… read more here.

Keywords: boundary condition; lieb schultz; condition; schultz mattis ... See more keywords