8 citations · 18 across the 5 of their papers we have counts for
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Fermat's Principle in General Relativity via Herglotz Variational Formalism
Joanna Piwnik, Joanna Gonera, Piotr Kosiński
New form of Fermat's principle for light propagation in arbitrary (i.e. in general neither static nor stationary) gravitational field is proposed. It is based on Herglotz extension…
Note on the Margolus-Levitin quantum speed limit for arbitrary fidelity
Krzysztof Andrzejewski, Katarzyna Bolonek-Lasoń, Piotr Kosiński
For vanishing fidelity between initial and final states two important quantum speed limits, the Mandelstam-Tamm limit (involving energy dispersion) and Margolus-Levitin one (involv…
The families of Hamiltonians sharing common symmetry structure
Cezary Gonera, Joanna Gonera, Artur Jasiński +1
We describe a general procedure which allows to construct, starting from a given Hamiltonian, the whole family of new ones sharing the same set of unparameterized trajectories in p…