21 citations · 50 across the 5 of their papers we have counts for
9 papers
Tunneling times with covariant measurements
J. Kiukas, A. Ruschhaupt, R. F. Werner
We consider the time delay of massive, non-relativistic, one-dimensional particles due to a tunneling potential. In this setting the well-known Hartman effect asserts that often th…
Semispectral measures as convolutions and their moment operators
Jukka Kiukas, Pekka Lahti, Kari Ylinen
The moment operators of a semispectral measure having the structure of the convolution of a positive measure and a semispectral measure are studied, with paying attention to the na…
A note on the measurement of phase space observables with an eight-port homodyne detector
J. Kiukas, P. Lahti
It is well known that the Husimi Q-function of the signal field can actually be measured by the eight-port homodyne detection technique, provided that the reference beam (used for…
On the moment limit of quantum observables, with an application to the balanced homodyne detection
J. Kiukas, P. Lahti
We consider the moment operators of the observable (i.e. a semispectral measure or POM) associated with the balanced homodyne detection statistics, with paying attention to the cor…
On infinite matrices, Schur products, and operator measures
J. Kiukas, P. Lahti, J. -P. Pellonpää
Measures with values in the set of sesquilinear forms on a subspace of a Hilbert space are of interest in quantum mechanics, since they can be interpreted as observables with only…
Notes on phase space quantization
J. Kiukas, P. Lahti, K. Ylinen
We consider questions related to a quantization scheme in which a classical variable f:Ω\to R on a phase space Ωis associated with a semispectral measure E^f, such that the moment…