17 citations · 53 across the 9 of their papers we have counts for
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quant-ph2006★ 9 cited
On the unitarity of higher-dervative and nonlocal theories
Katarzyna Bolonek, Piotr Kosinski
We consider two simple models of higher-derivative and nonlocal quantu systems.It is shown that, contrary to some claims found in literature, they can be made unitary.
quant-ph2006★ 3 cited
Comment on "Dirac Quantization of Pais-Uhlenbeck Fourth Order Oscillator"
Katarzyna Bolonek, Piotr Kosinski
The structure of Pais-Uhlenbeck oscillator in the equal-frequency limit has been recently studied by Mannheim and Davidson [Phys.Rev. A71 (2005), 042110]. It appears that taking th…