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
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 approa…
gr-qc2025
Cosmological Singularity and Power-Law Solutions in Modified Gravity
Saurya Das, S. Shajidul Haque, Seturumane Tema
A bouncing Universe avoids the big-bang singularity. Using the time-like and null Raychaudhhuri equations, we explore whether the bounce near the big-bang, within a broad spectrum…