Frustrated magnets are materials in which localized magnetic moments, or spins, interact
through competing exchange interactions that cannot be simultaneously satisfied, giving rise …

We review ground states and excitations of a quantum antiferromagnet on triangular and
other frustrated lattices. We pay special attention to the combined effects of magnetic field h …

Entanglement, measurement, and classical communication together enable teleportation of
quantum states between distant parties, in principle, with perfect fidelity. To what extent do …

The quest for Kitaev quantum spin liquids has led to great interest in honeycomb quantum
magnets with strong spin-orbit coupling. It has been recently proposed that even Mott …

We report the results of SQUID and torque magnetometry of an organic spin-1/2 triangular-
lattice κ-H 3 (Cat-EDT-TTF) 2. Despite antiferromagnetic exchange coupling at 80–100 K …

We study the quantum phase diagram of the spin-1/2 Heisenberg model on the kagome
lattice with first-, second-, and third-neighbor interactions J 1, J 2, and J 3 by means of …

The search for elementary excitations with fractional quantum numbers is a central
challenge in modern condensed-matter physics. It has long been speculated that two …

The spinel crystal system, AB 2 O 4, has been fertile ground in studying the effects of
magnetic and orbital frustration. The experimental findings, with primary focus on neutron …

We study the spin-1/2 Heisenberg model on the triangular lattice with the nearest-neighbor J
1> 0, the next-nearest-neighobr J 2> 0 Heisenberg interactions, and the additional scalar …

Arrays of Rydberg atoms constitute a highly tunable, strongly interacting venue for the
pursuit of exotic states of matter. We develop a strategy for accessing a family of …