62 citations · 106 across the 9 of their papers we have counts for
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gr-qc2026
Time and causality in quantum gravity
Charis Anastopoulos
The problem of time in quantum gravity is often presented as a consequence of applying quantum theory to general relativity. These notes adopt a broader perspective. We first exami…
gr-qc2026
Singular Solutions of the Tolman Oppenheimer Volkoff Equation with a Cosmological Constant Classification and Properties
Christos Dounis, Charis Anastopoulos
We study the Tolman-Oppenheimer-Volkoff equation in the presence of a cosmological constant for general thermodynamically consistent equations of state, without imposing regularity…
quant-ph2026
Time of arrival on a ring and relativistic quantum clocks
Iason Vakondios, Charis Anastopoulos
We study the time-of-arrival problem for relativistic particles constrained to move on a ring, formulating the problem entirely within Quantum Field Theory (QFT). In contrast to it…