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quant-ph2024
Exponential Expansion of Massive Schrödinger Cats for Sensing and Entanglement
Lorenzo Braccini, Alessio Serafini, Sougato Bose
Schrödinger cat states of levitated masses have several applications in sensing and, offer an avenue to explore the fundamental nature -- classical vs nonclassical -- of gravity, e…
hep-th2024★ 12 cited
Entanglement Entropy in Scalar Quantum Electrodynamics
Samuel Fedida, Anupam Mazumdar, Sougato Bose +1
We find the entanglement entropy of a subregion of the vacuum state in scalar quantum electrodynamics, working perturbatively to the 2-loops level. Doing so leads us to derive the…