58 citations · 85 across the 17 of their papers we have counts for
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Entropy of Quantum Measurements
Stan Gudder
If is a quantum effect and is a state, we define the -entropy which gives the amount of uncertainty that a measurement of provides about . The smaller $S…
Mutually Unbiased Quantum Observables
Stan Gudder
We begin by defining mutually unbiased (MU) observables on a finite dimensional Hilbert space. We also consider the more general concept of parts of MU observables. The relationshi…
Sequential Products of Quantum Measurements
Stan Gudder
Our basic structure is a finite-dimensional complex Hilbert space . We point out that the set of effects on form a convex effect algebra. Although the set of operators on $H…
Time Evolution of Quantum Effects
Stan Gudder
For quantum effects and we define the -evolution of at time denoted by . We interpret as the influence that has on at time w…
Nondisturbing Quantum Measurement Models
Stan Gudder
A measurement model is a framework that describes a quantum measurement process. In this article we restrict attention to s on finite-dimensional Hilbert spaces. Suppose we wan…
Finite Quantum Instruments
Stan Gudder
This article considers quantum systems described by a finite-dimensional complex Hilbert space . We first define the concept of a finite observable on . We then discuss ways…