112 citations · 139 across the 3 of their papers we have counts for
4 papers
A unique quasi-probability for projective yes-no measurements
Lars M. Johansen
From an analysis of projective measurements, it is shown that the Wigner rule is the unique operational quasi-probability for the post-measurement state. A unique pre-measurement q…
Quantum theory of successive projective measurements
Lars M. Johansen
We show that a quantum state may be represented as the sum of a joint probability and a complex quantum modification term. The joint probability and the modification term can both…
Reconstructing weak values without weak measurements
Lars M. Johansen
I propose a scheme for reconstructing the weak value of an observable without the need for weak measurements. The post-selection in weak measurements is replaced by an initial proj…
Nonclassical evolution of a free particle
Lars M. Johansen
A conditional kinetic energy is defined in terms of the Wigner distribution. It is shown that this kinetic energy may become negative for negative Wigner distributions. A free part…