We consider the problem of frequency estimation for a single bosonic field evolving under a
squeezing Hamiltonian and continuously monitored via homodyne detection. In particular …

In this paper we approach the theory of continuous measurements and the associated
unconditional and conditional (stochastic) master equations from the perspective of quantum …

Decoherence originates from the leakage of quantum information into external degrees of
freedom. For a qubit, the two main decoherence channels are relaxation and dephasing …

We show that continuous quantum nondemolition (QND) measurement of an atomic
ensemble is able to improve the precision of frequency estimation even in the presence of …

We derive quantum trajectories (also known as stochastic master equations) that describe
an arbitrary quantum system probed by a propagating wave packet of light prepared in a …

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

The use of weak measurements for performing quantum tomography is enjoying increased
attention due to several recent proposals. The claimed merits of using weak measurements …

The ability to control quantum systems using shaped fields as well as to infer the states of
such controlled systems from measurement data are key tasks in the design and operation …

We study quantum tomography from a continuous measurement record obtained by
measuring expectation values of a set of Hermitian operators obtained from unitary evolution …

We give bounds on the average fidelity achievable by any quantum state estimator, which is
arguably the most prominently used figure of merit in quantum state tomography. Moreover …