A universal fault-tolerant quantum computer that can efficiently solve problems such as
integer factorization and unstructured database search requires millions of qubits with low …

Digital quantum computers provide a computational framework for solving the Schrödinger
equation for a variety of many‐particle systems. Quantum computing algorithms for the …

We study CP 2 skyrmion crystals in the ferromagnetic SU (3) Heisenberg model with a
generalization of the Dzyaloshinskii-Moriya interaction and the Zeeman term. The model …

The Jordan–Wigner transformation establishes a duality between su (2) and fermionic
algebras. We present qualitative arguments and numerical evidence that when mapping …

The application of an external magnetic field of sufficient strength to a spin system
composed of a localized singlet can overcome the energy gap and trigger bosonic …

We introduce a hybrid quantum-classical variational algorithm to simulate ground-state
phase diagrams of frustrated quantum spin models in the thermodynamic limit. The method …

Starting with a minimal model for the CuO 2 planes with the on-site Hilbert space reduced to
a charge triplet of the three effective valence centers [CuO 4] 7−, 6−, 5−(nominally Cu 1+, 2+ …

Dimerized quantum magnets provide a unique possibility to investigate the Bose-Einstein
condensation of magnetic excitations in crystalline systems at low temperature. Here, we …

Non-commutative algebras and entanglement are two of the most important hallmarks of
many-body quantum systems. Dynamical perturbation methods are the most widely used …

• A recent studies upon an infinite-layer nickelate, Ba2NiO2 (AgSe) 2 (BNOAS), has shown
that the formation of an off-diagonal singlet can explain its peculiar magnetic susceptibility.• …