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 …

Unitary transformations are the most general input-output maps available in closed quantum
systems. Good control protocols have been developed for qubits, but questions remain …

The need to perform quantum state tomography on ever-larger systems has spurred a
search for methods that yield good estimates from incomplete data. We study the …

We study operator spreading in many-body quantum systems by its potential to generate an
informationally complete measurement record in quantum tomography. We adopt …

The spin-coherent-state positive-operator-valued-measure (POVM) is a fundamental
measurement in quantum science, with applications including tomography, metrology …

We find quantum signatures of chaos in various metrics of information gain in quantum
tomography. We employ a quantum state estimator based on weak collective measurements …

A quantum state contains the maximal amount of information available for a given quantum
system. In this paper we use weak-value expressions to reconstruct quantum states of …

We study the ability to control d-dimensional quantum systems (qudits) encoded in the
hyperfine spin of alkali-metal atoms through the application of radio-and microwave …

We describe a dispersive Faraday optical probe of atomic spin which performs a weak
measurement of spin projection of a quantum gas continuously for more than one second …

We consider the exact time-evolution of a broad class of fermionic open quantum systems
with both strong interactions and strong coupling to wide-band reservoirs. We present a …