Boston University

researchers with a paper here

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

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Showing 2018 · cond-mat.str-elShow all

18 papers · 2 filters

cond-mat.str-el2018★ 25 cited

Observing spin fractionalization in the Kitaev spin liquid via temperature evolution of indirect resonant inelastic x-ray scattering

Gábor B. Halász, Stefanos Kourtis, Johannes Knolle +1

Motivated by the ongoing effort to search for high-resolution signatures of quantum spin liquids, we investigate the temperature dependence of the indirect resonant inelastic x-ray…

cond-mat.str-el2018★ 63 cited

Quantum spin liquid at finite temperature: proximate dynamics and persistent typicality

I. Rousochatzakis, S. Kourtis, J. Knolle +2

Quantum spin liquids are long-range entangled states of matter with emergent gauge fields and fractionalized excitations. While candidate materials, such as the Kitaev honeycomb ru…

cond-mat.str-el2018★ 10 cited

Steady-state superconductivity in electronic materials with repulsive interactions

Oliver Hart, Garry Goldstein, Claudio Chamon +1

We study the effect of laser driving on a minimal model for a hexagonal two-dimensional material with broken inversion symmetry. Through the application of circularly polarised lig…

cond-mat.str-el2018★ 7 cited

Model of spin liquids with and without time-reversal symmetry

Jyong-Hao Chen, Christopher Mudry, Claudio Chamon +1

We study a model in (2+1)-dimensional spacetime that is realized by an array of chains, each of which realizes relativistic Majorana fields in (1+1)-dimensional spacetime, coupled…

cond-mat.str-el2018★ 66 cited

Multicritical Fermi surface topological transitions

Dmitry V. Efremov, Alex Shtyk, Andreas W. Rost +3

A wide variety of complex phases in quantum materials are driven by electron-electron interactions, which are enhanced through density of states peaks. A well known example occurs…

cond-mat.str-el2018★ 45 cited

Gapless spin liquid in the kagome Heisenberg antiferromagnet with Dzyaloshinskii-Moriya interactions

Chih-Yuan Lee, B. Normand, Ying-Jer Kao

A preponderance of evidence suggests that the ground state of the nearest-neighbor $S = 1/2$ antiferromagnetic Heisenberg model on the kagome lattice is a gapless spin liquid. Many…

cond-mat.str-el2018★ 251 cited

Signatures of integrability in the dynamics of Rydberg-blockaded chains

Vedika Khemani, Chris R. Laumann, Anushya Chandran

A recent experiment on a 51-atom Rydberg blockaded chain observed anomalously long-lived temporal oscillations of local observables after quenching from an antiferromagnetic initia…

cond-mat.str-el2018★ 8 cited

Tunneling-induced restoration of classical degeneracy in quantum kagome ice

Kai-Hsin Wu, Yi-Ping Huang, Ying-Jer Kao

Quantum effect is expected to dictate the behaviour of physical systems at low temperature. For quantum magnets with geometrical frustration, quantum fluctuation usually lifts the…

cond-mat.str-el2018★ 5 cited

Typicality at quantum-critical points

Lu Liu, Anders W. Sandvik, WenAn Guo

We discuss the concept of typicality of quantum states at quantum-critical points, using projector Monte Carlo simulations of an $S = 1/2$ bilayer Heisenberg antiferromagnet as an il…

cond-mat.str-el2018★ 64 cited

Symmetry enhanced first-order phase transition in a two-dimensional quantum magnet

Bowen Zhao, Phillip Weinberg, Anders W. Sandvik

Theoretical studies of quantum phase transitions have suggested critical points with higher symmetries than those of the underlying Hamiltonian. Here we demonstrate a surprising em…

cond-mat.str-el2018★ 63 cited

Random-Singlet Phase in Disordered Two-Dimensional Quantum Magnets

Lu Liu, Hui Shao, Yu-Cheng Lin +2

We study effects of disorder (randomness) in a 2D square-lattice $S = 1/2$ quantum spin system, the $J$ - $Q$ model with a 6-spin interaction $Q$ supplementing the Heisenberg exchange…

cond-mat.str-el2018★ 13 cited

Metamagnetism and zero-scale-factor universality in the two-dimensional $J$ - $Q$ model

Adam Iaizzi, Kedar Damle, Anders W. Sandvik

Using a combination of quantum Monte Carlo and exact methods, we study the field-driven saturation transition of the two-dimensional $J$ - $Q$ model, in which the antiferromagnetic H…

cond-mat.str-el2018★ 53 cited

Anomalous quantum-critical scaling corrections in two-dimensional antiferromagnets

Nvsen Ma, Phillip Weinberg, Hui Shao +3

We study the Néel-paramagnetic quantum phase transition in two-dimensional dimerized $S = 1/2$ Heisenberg antiferromagnets using finite-size scaling of quantum Monte Carlo data. We r…

cond-mat.str-el2018★ 15 cited

Scrambling via Braiding of Nonabelions

Zhi-Cheng Yang, Konstantinos Meichanetzidis, Stefanos Kourtis +1

We study how quantum states are scrambled via braiding in systems of non-Abelian anyons through the lens of entanglement spectrum statistics. In particular, we focus on the degree…

cond-mat.str-el2018★ 15 cited

Numerical Investigations of SO(4) Emergent Extended Symmetry in Spin-1/2 Heisenberg Antiferromagnetic Chains

Pranay Patil, Emanuel Katz, Anders W. Sandvik

The antiferromagnetic Heisenberg chain is expected to have an extended symmetry, [SU(2)xSU(2)]/Z 2 , in the infrared limit, whose physical interpretation is that the spin and dimer…

cond-mat.str-el2018

Quantum oscillations and criticality in a fermionic and bosonic dimer model for the cuprates

Garry Goldstein, Claudio Chamon, Claudio Castelnovo

We study quantum oscillations for a system of fermionic and bosonic dimers and compare the results to those experimentally observed in the cuprate superconductors in their underdop…

cond-mat.str-el2018★ 105 cited

Dynamical Signature of Fractionalization at the Deconfined Quantum Critical Point

Nvsen Ma, Guang-Yu Sun, Yi-Zhuang You +4

Deconfined quantum critical points govern continuous quantum phase transitions at which fractionalized (deconfined) degrees of freedom emerge. Here we study dynamical signatures of…