RIKEN Center for Emergent Matter Science

Variational quantum algorithms

Applications such as simulating complicated quantum systems or solving large-scale linear algebra problems are very challenging for classical computers, owing to the extremely h...

Wannier90 as a community code: new features and applications

Abstract W annier90 is an open-source computer program for calculating maximally-localised Wannier functions (MLWFs) from a set of Bloch states. It is interfaced to many widely ...

Non-Hermitian physics

A review is given on the foundations and applications of non-Hermitian\nclassical and quantum physics. First, key theorems and central concepts in\nnon-Hermitian linear algebra,...

Topological Phases of Non-Hermitian Systems

Recent experimental advances in controlling dissipation have brought about\nunprecedented flexibility in engineering non-Hermitian Hamiltonians in open\nclassical and quantum sy...

Symmetry and Topology in Non-Hermitian Physics

We develop a complete theory of symmetry and topology in non-Hermitian\nphysics. We demonstrate that non-Hermiticity ramifies the celebrated\nAltland-Zirnbauer symmetry classifi...

Intrinsic magnetic topological insulators in van der Waals layered MnBi ₂ Te ₄ -family materials

MnBi 2 Te 4 -related compounds can serve as a promising material platform for exploring exotic magnetic topological effects.

Self-powered ultra-flexible electronics via nano-grating-patterned organic photovoltaics

Magnetic topological insulators

Highly crystalline 2D superconductors

Nearly free electron states in MXenes

Using a set of first-principles calculations, we studied the electronic\nstructures of two-dimensional transition metal carbides and nitrides, so called\nMXenes, functionalized ...