How can one prove that a given quantum state is entangled? In this paper we review
different methods that have been proposed for entanglement detection. We first explain the …

Midcircuit operations, such as qubit state measurement or reset, are central to many tasks in
quantum information science, including quantum computing, entanglement generation, and …

This review covers recent theoretical and experimental efforts to extend the application of
the continuous-variable quantum technology of light beyond" Gaussian" quantum states …

We propose a simple scheme to reduce readout errors in experiments on quantum systems
with finite number of measurement outcomes. Our method relies on performing classical …

We show that parametric coupling techniques can be used to generate selective entangling
interactions for multi-qubit processors. By inducing coherent population exchange between …

The generation, manipulation and fundamental understanding of entanglement lies at the
very heart of quantum mechanics. Entangled particles are non-interacting but are described …

Quantum process tomography is a necessary tool for verifying quantum gates and
diagnosing faults in architectures and gate design. We show that the standard approach of …

Characterization protocols have so far played a central role in the development of noisy
intermediate-scale quantum (NISQ) computers capable of impressive quantum feats. This …

Accurately inferring the state of a quantum device from the results of measurements is a
crucial task in building quantum information processing hardware. The predominant state …

We provide an efficient method for computing the maximum-likelihood mixed quantum state
(with density matrix ρ) given a set of measurement outcomes in a complete orthonormal …