The strong disorder RG approach for random systems has been extended in many new
directions since our previous review of 2005 [F. Igloi, C. Monthus, Phys. Rep. 412, 277 …

This review provides a perspective on recent developments and their implications for our
understanding of novel quantum phenomena in the physics of two-dimensional organic …

We analyze the effect of quenched disorder on spin-1/2 quantum magnets in which
magnetic frustration promotes the formation of local singlets. Our results include a theory for …

A quantum spin liquid is a state of matter where unpaired electrons' spins, although
entangled, do not show magnetic order even at the zero temperature. The realization of a …

Finding the ground state of a quantum many-body system is a fundamental problem in
quantum physics. In this work, we give a classical machine learning (ML) algorithm for …

We demonstrate how quantum entanglement can be directly witnessed in the quasi-1D
Heisenberg antiferromagnet KCuF 3. We apply three entanglement witnesses—one tangle …

Geometrical frustration, quantum entanglement, and disorder may prevent long-range
ordering of localized spins with strong exchange interactions, resulting in an exotic state of …

In magnetic systems, spin and exchange disorder can provide access to quantum criticality,
frustration, and spin dynamics, but broad tunability of these responses and a deeper …

The nature of the randomness-induced quantum spin liquid state, the random-singlet state,
is investigated in two dimensions (2D) by means of the exact-diagonalization and the Hams …

In a recent study [Phys. Rev. X 10, 021042 (2020) 10.1103/PhysRevX. 10.021042], we
showed using large-scale density matrix renormalization group (DMRG) simulations on …