60 citations · 126 across the 14 of their papers we have counts for
15 papers
Collapses and Avoiding Wave Function Spreading
Aharon Casher, Shmuel Nussinov, Jeffrey Tollaksen
We address the impossibility of achieving exact time reversal in a system with many degrees of freedom. This is a particular example of the difficult task of "aiming" an initial cl…
Quantum interference experiments, modular variables and weak measurements
Jeff Tollaksen, Yakir Aharonov, Aharon Casher +2
We address the problem of interference using the Heisenberg picture and highlight some new aspects through the use of pre-selection, post-selection, weak measurements, and modular…
On Black Hole Remnants
Aharon Casher, Nir Raz
We introduce two models for a planck scale black hole remnant (Planckon), which can hold arbitrarily large information, while keeping a vanishing coupling and discuss their physica…
The Narrow Theta(1543)--A QCD Dilemma: Tube or Not Tube?
Aharon Casher, Shmuel Nussinov
We argue that a width of less than MeV of the new Theta resonance is inconsistent with the observed ratio of resonance and background events in the various photon initiated experim…
De Sitter Invariant Vacuum States, Vertex Operators, and Conformal Field Theory Correlators
Aharon Casher, Pawel O. Mazur, Andrzej J. Staruszkiewicz
We show that there is only one physically acceptable vacuum state for quantum fields in de Sitter space-time which is left invariant under the action of the de Sitter-Lorentz group…
Back-Reaction of Clocks and Limitations on Observability in Closed Systems
Aharon Casher, Benni Reznik
Measurements are ordinarily described with respect to absolute "Newtonian" time. In reality however, the switching-on of the measuring device at the instance of the measurement req…