4 papers
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…
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…
Including gravity in equilibrium thermodynamics
Eirini Sourtzinou, Charis Anastopoulos
This paper is part of a bottom-up approach to gravitational thermodynamics that is guided by the axiomatic frameworks of equilibrium thermodynamics. We identify a novel form of the…
Relativistic Quantum Information from Unequal-Time QFT Correlation Functions
Charis Anastopoulos, Konstantina Savvidou
This paper continues on the program of developing a relativistic quantum information theory in terms of unequal-time correlation functions in quantum field theory (QFT)[arXiv:2208.…