The optimal discrimination of nonorthogonal quantum states with minimum error probability
is a fundamental task in quantum measurement theory as well as an important primitive in …

Measurement of the state of a quantum system with inherent quantum uncertainty (noise)
approaching the ultimate physical limits is of both technological and fundamental interest …

We investigate quantum measurement strategies capable of discriminating two coherent
states probabilistically with significantly smaller error probabilities than can be obtained …

The discrimination of two nonorthogonal states is a fundamental element for secure and
efficient communication. Quantum measurements of nonorthogonal coherent states can …

We derive the quantum limit on the error probability exponent for discriminating any M
multimode coherent states of light and show that it is four times that of an ideal heterodyne …

Quantum mechanics forbids deterministic discrimination among nonorthogonal states.
Nonetheless, the capability to distinguish nonorthogonal states unambiguously is an …

We address the limit of the Gaussian operations and classical communication in the problem
of quantum state discrimination. We show that the optimal Gaussian strategy for the …

We investigate the optimal trade-off between information gained about an unknown
coherent state and the state disturbance caused by the measurement process. We propose …

Generalized quantum measurements implemented to allow for measurement outcomes
termed inconclusive can perform perfect discrimination of non-orthogonal states, a task …

Several proposed techniques for distinguishing between optical coherent states are
analyzed under a physically realistic model of photodetection. Quantum error probabilities …