3 papers
quant-ph2025
Arrival Time -- Classical Parameter or Quantum Operator?
MohammadJavad Kazemi, MohammadHossein Barati, Ghadir Jafari +2
The question of how to interpret and compute arrival-time distributions in quantum mechanics remains unsettled, reflecting the longstanding tension between treating time as a quant…
gr-qc2025
Interaction of exact gravitational waves with matter
Morteza Mohseni, Saurya Das
We consider interactions of exact (i.e., solutions of full nonlinear field equations) gravitational waves with matter by using the Einstein-Boltzmann equation. For a gravitational…
gr-qc2025
Power-Law Bounces in Gravity: Analysis of the Ekpyrosis and Accelerating Regimes
Saurya Das, Peter Dunsby, S. Shajidul Haque +1
We investigate the dynamics of the Friedmann-Lemaître-Robertson-Walker spacetime within the framework of gravity using a compact, model-independent dynamical systems approac…