Boston University

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19912026

researchers with a paper here

Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.

collaborating institutions

Showing 2021 · cond-mat.str-elShow all

11 papers · 2 filters

cond-mat.str-el2021★ 6 cited

The role of q-spin singlet pairs of physical spins in the dynamical properties of the spin-1/2 Heisenberg-Ising XXZ chain

José M. P. Carmelo, Pedro D. Sacramento

Dynamical correlation functions contain important physical information on correlated spin models. Here a dynamical theory suitable suitable to the isotropic spin-1/2 Heisenberg cha…

cond-mat.str-el2021★ 29 cited

Multi-magnon quantum many-body scars from tensor operators

Long-Hin Tang, Nicholas O'Dea, Anushya Chandran

We construct a family of three-body spin-1/2 Hamiltonians with a super-extensive set of infinitely long-lived multi-magnon states. A magnon in each such state carries either quasi-…

cond-mat.str-el2021★ 7 cited

Dynamical Axions in $U (1)$ Quantum Spin Liquids

Salvatore D. Pace, Claudio Castelnovo, Chris R. Laumann

Since their proposal nearly half a century ago, physicists have sought axions in both high energy and condensed matter settings. Despite intense and growing efforts, to date experi…

cond-mat.str-el2021★ 58 cited

Hilbert space fragmentation in a 2D quantum spin system with subsystem symmetries

Alexey Khudorozhkov, Apoorv Tiwari, Claudio Chamon +1

We consider a 2D quantum spin model with ring-exchange interaction that has subsystem symmetries associated to conserved magnetization along rows and columns of a square lattice, w…

cond-mat.str-el2021★ 9 cited

One-particle spectral functions of the one-dimensional Fermionic Hubbard model with one fermion per site at zero and finite magnetic fields

José M. P. Carmelo, Tilen Čadež, Pedro D. Sacramento

Here the line shape of the up- and down-spin one-particle spectral functions at and in the (k,energy)-plane's vicinity of their cusp singularities is studied for the Mott-Hubbard i…

cond-mat.str-el2021★ 95 cited

Quantum Criticality and Spin Liquid Phase in the Shastry-Sutherland model

Jianwei Yang, Anders W. Sandvik, Ling Wang

Using the density-matrix renormalization group method for the ground state and excitations of the Shastry- Sutherland spin model, we demonstrate the existence of a narrow quantum s…

cond-mat.str-el2021★ 5 cited

Z2 topological order and first-order quantum phase transitions in systems with combinatorial gauge symmetry

Kai-Hsin Wu, Zhi-Cheng Yang, Dmitry Green +2

We study a generalization of the two-dimensional transverse-field Ising model, combining both ferromagnetic and antiferromagnetic two-body interactions, that hosts exact global and…

cond-mat.str-el2021★ 3 cited

Field Theories for type-II fractons

Weslei B. Fontana, Pedro R. S. Gomes, Claudio Chamon

We derive an effective field theory for a type-II fracton starting from the Haah code on the lattice. The effective topological theory is not given exclusively in terms of an actio…

cond-mat.str-el2021★ 25 cited

Emergent O(4) symmetry at the phase transition from plaquette-singlet to antiferromagnetic order in quasi-two-dimensional quantum magnets

Guangyu Sun, Nvsen Ma, Bowen Zhao +2

Recent experiments [J. Guo et al., Phys. Rev. Lett.124,206602 (2020)] on thermodynamic properties of the frustrated layered quantum magnet SrCu $_{2}$ (BO $_{3}$ ) $_{2}$ -- the Shastry-Suthe…

cond-mat.str-el2021★ 2 cited

Bethe strings in the spin dynamical structure factor of the Mott-Hubbard phase in one-dimensional fermionic Hubbard model

Jose M. P. Carmelo, Tilen Cadez

The spectra and role in the spin dynamical properties of bound states of elementary magnetic excitations named Bethe strings that occur in some integrable spin and electronic one-d…