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Magnetic monopoles in spin ice
This work proposes that magnetic monopoles emerge in a class of exotic magnets known collectively as spin ice: the dipole moment of the underlying electronic degrees of freedom fractionalises into monopoles, which would account for a mysterious phase transition observed experimentally in spin ice in a magnetic field. Expand
Continuous quantum phase transitions
A quantum system can undergo a continuous phase transition at the absolute zero of temperature as some parameter entering its Hamiltonian is varied. These transitions are particularly interestingExpand
Phase Structure of Driven Quantum Systems.
It is shown that their disordered Floquet many-body localized counterparts can exhibit distinct ordered phases delineated by sharp transitions, and these are analogs of equilibrium states with broken symmetries and topological order. Expand
Operator Hydrodynamics, OTOCs, and Entanglement Growth in Systems without Conservation Laws
Thermalization and scrambling are the subject of much recent study from the perspective of many-body quantum systems with locally bounded Hilbert spaces (`spin chains'), quantum field theory andExpand
Resonating valence bond phase in the triangular lattice quantum dimer model.
The quantum dimer model on the triangular lattice is studied, which is expected to describe the singlet dynamics of frustrated Heisenberg models in phases where valence bond configurations dominate their physics, and it is found that there is a truly short ranged resonating valence Bond phase with no gapless excitations and with deconfined, gapped, spinons for a finite range of parameters. Expand
Kibble-Zurek problem: Universality and the scaling limit
Near a critical point, the equilibrium relaxation time of a system diverges and any change of control/thermodynamic parameters leads to non-equilibrium behavior. The Kibble-Zurek problem is toExpand
Ising models of quantum frustration
We report on a systematic study of two-dimensional, periodic, frustrated Ising models with quantum dynamics introduced via a transverse magnetic field. The systems studied are the triangular andExpand
Theory of the [111] magnetization plateau in spin ice
The application of a magnetic field along the [111] direction in the spin ice compounds leads to two magnetization plateaux, in the first of which the ground-state entropy is reduced but stillExpand
Dipolar spin correlations in classical pyrochlore magnets.
It is conjecture that a local constraint obeyed by the extensively degenerate ground states dictates a dipolar form for the asymptotic spin correlations, at all N not equal 2 for which the system is paramagnetic down to T=0. Expand
Superconductors are topologically ordered
Abstract We revisit a venerable question: what is the nature of the ordering in a superconductor? We find that the answer is properly that the superconducting state exhibits topological order in theExpand