The Jaynes–Cummings Model (JCM) has recently been receiving increased attention as
one of the simplest, yet intricately nonlinear, models of quantum physics. Emphasising the …

Trapped ions offer long coherence times and high fidelity, programmable quantum
operations, making them a promising platform for quantum simulation of condensed matter …

We describe and benchmark a new quantum charge-coupled device (QCCD) trapped-ion
quantum computer based on a linear trap with periodic boundary conditions, which …

Measurement has a special role in quantum theory: by collapsing the wavefunction, it can
enable phenomena such as teleportation and thereby alter the 'arrow of time'that constrains …

Current gate-based quantum computers have the potential to provide a computational
advantage if algorithms use quantum hardware efficiently. To make combinatorial …

Parameterized quantum circuits are a promising technology for achieving a quantum
advantage. An important application is the variational simulation of time evolution of …

We characterize the variational power of quantum circuit tensor networks in the
representation of physical many-body ground states. Such tensor networks are formed by …

Lately, the non-Hermitian skin effect (NHSE) has been demonstrated in various classical
metamaterials and even ultracold atomic arrays. Yet, its interplay with many-body dynamics …

Quantum computing is in its greatest upswing, with so-called noisy-intermediate-scale-
quantum devices heralding the computational power to be expected in the near future. While …

We analyze the barren plateau phenomenon in the variational optimization of quantum
circuits inspired by matrix product states (qMPS), tree tensor networks (qTTN), and the …