Among the many computational challenges faced across different disciplines, quantum-
mechanical systems pose some of the hardest ones and offer a natural playground for the …

Quantum computing is a rapidly develo** field that has the potential to revolutionize the
way we process data. In this article, we will introduce quantum computers, their hardware …

Quantum sensors such as spin defects in diamond have achieved excellent performance by
combining high sensitivity with spatial resolution. Unfortunately, these sensors can only …

When subjected to quasiperiodic driving protocols, superconducting systems have been
found to harbor robust time-quasiperiodic Majorana modes, extending the concept beyond …

Topological effects are characterized by topological invariants, which are typically integer-
valued, and lead to robust quantized transport channels in space, time and other degrees of …

Floquet modulation has been widely used in optical lattices for coherent control of quantum
gases, in particular for synthesizing artificial gauge fields and simulating topological matters …

Topological effects manifest in a variety of lattice geometries. While square lattices, due to
their simplicity, have been used for models supporting nontrivial topology, several exotic …

We show that rhombohedral multilayer graphene supports topological frequency
conversion, whereby a fraction of electrons transfer energy between two monochromatic …

We theoretically predict a working principle for optical amplification, based on Weyl
semimetals: When a Weyl semimetal is suitably irradiated at two frequencies, electrons …

The paradigm of Floquet engineering of topological states of matter can be generalized into
the time-quasiperiodic scenario, where a lower-dimensional time-dependent system maps …