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Real-time dynamics of string breaking in quantum spin chains
R Verdel, F Liu, S Whitsitt, AV Gorshkov, M Heyl - Physical Review B, 2020 - APS
String breaking is a central dynamical process in theories featuring confinement, where a
string connecting two charges decays at the expense of the creation of new particle …
string connecting two charges decays at the expense of the creation of new particle …
Van Hove singularity in the magnon spectrum of the antiferromagnetic quantum honeycomb lattice
In quantum magnets, magnetic moments fluctuate heavily and are strongly entangled with
each other, a fundamental distinction from classical magnetism. Here, with inelastic neutron …
each other, a fundamental distinction from classical magnetism. Here, with inelastic neutron …
Magnetic properties of the quasi-XY Shastry-Sutherland magnet
A Brassington, Q Ma, G Sala, AI Kolesnikov… - Physical Review …, 2024 - APS
Polycrystalline and single-crystal samples of the insulating Shastry-Sutherland compound Er
2 Be 2 SiO 7 were synthesized via a solid-state reaction and the floating zone method …
2 Be 2 SiO 7 were synthesized via a solid-state reaction and the floating zone method …
Thermalization of interacting quasi-one-dimensional systems
M Panfil, S Gopalakrishnan, RM Konik - Physical review letters, 2023 - APS
Many experimentally relevant systems are quasi-one-dimensional, consisting of nearly
decoupled chains. In these systems, there is a natural separation of scales between the …
decoupled chains. In these systems, there is a natural separation of scales between the …
Amplitude mode in quantum magnets via dimensional crossover
We investigate the amplitude (Higgs) mode associated with longitudinal fluctuations of the
order parameter at the continuous spontaneous symmetry breaking phase transition. In …
order parameter at the continuous spontaneous symmetry breaking phase transition. In …
Spin chain on a metallic surface: Dissipation-induced order versus Kondo entanglement
We explore the physics of a spin-1/2 Heisenberg chain with Kondo interaction, J k, to a two-
dimensional electron gas. At weak J k the problem maps onto a Heisenberg chain locally …
dimensional electron gas. At weak J k the problem maps onto a Heisenberg chain locally …
Field-induced partial disorder in a Shastry-Sutherland lattice
M Marshall, BR Billingsley, X Bai, Q Ma, T Kong… - Nature …, 2023 - nature.com
A 2-Q antiferromagnetic order of the ferromagnetic dimers was found below TN= 2.9 K in the
Shastry-Sutherland lattice BaNd2ZnS5 by single crystal neutron diffraction. The magnetic …
Shastry-Sutherland lattice BaNd2ZnS5 by single crystal neutron diffraction. The magnetic …
Studies of spinons, majoranas, and monopoles in spin liquid and quantum critical magnets with neutrons
DA Tennant - Journal of the Physical Society of Japan, 2019 - journals.jps.jp
Quantum and frustrated materials have outstanding potential for the future with the promise
of transformative properties in energy storage, conversion, and transmission as well as for …
of transformative properties in energy storage, conversion, and transmission as well as for …
Spectral evolution of the antiferromagnetic Heisenberg model: From one to two dimensions
We employ spin-cluster perturbation theory to investigate the evolution of the spin excitation
spectra of the mixed-dimensional antiferromagnetic s= 1 2 Heisenberg models from the one …
spectra of the mixed-dimensional antiferromagnetic s= 1 2 Heisenberg models from the one …
Critical phase induced by Berry phase and dissipation in a spin chain
S Martin, T Grover - Physical Review Research, 2023 - APS
Motivated by experiments on spin chains embedded in a metallic bath, as well as closed
quantum systems described by long-range interacting Hamiltonians, we study a critical SU …
quantum systems described by long-range interacting Hamiltonians, we study a critical SU …