Full quantum tomography of high-dimensional quantum systems is experimentally infeasible
due to the exponential scaling of the number of required measurements on the number of …

A prerequisite to the successful development of quantum computers and simulators is
precise understanding of the physical processes occurring therein, which can be achieved …

Entanglement is the powerful and enigmatic resource central to quantum information
processing, which promises capabilities in computing, simulation, secure communication …

Flexible characterization techniques that provide a detailed picture of the experimental
imperfections under realistic assumptions are crucial to gain actionable advice in the …

Fermionic reduced density matrices summarize the key observables in Fermionic systems.
In electronic systems, the two-particle reduced density matrix (2-RDM) is sufficient to …

As quantum tomography is becoming a key component of the quantum engineering toolbox,
there is a need for a deeper understanding of the multitude of estimation methods available …

Quantum state tomography is both a crucial component in the field of quantum information
and computation and a formidable task that requires an incogitable number of measurement …

Identifying a reasonably small Hilbert space that completely describes an unknown quantum
state is crucial for efficient quantum information processing. We introduce a general …

We present a compressive quantum process tomography scheme that fully characterizes
any rank-deficient completely positive process with no spurious a priori information. It uses …

Recent quantum technologies utilize complex multidimensional processes that govern the
dynamics of quantum systems. We develop an adaptive diagonal-element-probing …