3 papers
gr-qc2026
Primordial spectra from modified Bekenstein-Hawking entropy law
Marco de Cesare, Giulia Gubitosi, Varun Kushwaha
Many approaches to quantum gravity predict logarithmic corrections to the Bekenstein-Hawking entropy. Within the spacetime-thermodynamic description of gravity, such corrections le…
quant-ph2026
Causality from the spectrum: Emergence of causal order from process-matrix mereology
Varun Kushwaha, Nicolas Loizeau, Alexei Grinbaum +1
In Hamiltonian systems, the only basis-independent quantity is the spectrum. Given a spectrum, quantum mereology seeks preferred tensor-product decompositions into local subsystems…
hep-th2026
Area Scaling of Dynamical Degrees of Freedom in Regularised Scalar Field Theory
Oliver Friedrich, Kristina Giesel, Varun Kushwaha
How many canonical degrees of freedom does a quantum field theory actually use during its Hamiltonian evolution? For a UV/IR-regularised classical scalar field, we address this que…