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Generalized entanglement capacity of de Sitter space
Near horizons, quantum fields of low spin exhibit densities of states that behave asymptotically like 1 + 1 dimensional conformal field theories. In effective field theory, imposing some short-distance cutoff, one can compute thermodynamic quantities associated with the horizon, and the leading cutoff sensitivity of the heat capacity is found to equal to the leading cutoff sensitivity of the entropy. One can also compute contributions to the thermodynamic quantities from the gravitational path integral. For the cosmological horizon of the static patch of de Sitter space, a natural conjecture for the relevant heat capacity is shown to equal the Bekenstein-Hawking entropy. These observations allow us to extend the well-known notion of the generalized entropy to a generalized heat capacity for the static patch of de Sitter (dS). The finiteness of the entropy and the nonvanishing of the generalized heat capacity suggest it is useful to think about dS as a state in a finite dimensional quantum gravity model that is not maximally uncertain. Published by the American Physical Society 2024
High Quality Entangled Photon Pair Generation in Periodically Poled Thin-Film Lithium Niobate Waveguides
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Precise Measurements of Decay Parameters and C P Asymmetry with Entangled Λ − Λ ¯ Pairs
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Real-Time Nonperturbative Dynamics of Jet Production in Schwinger Model: Quantum Entanglement and Vacuum Modification
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Probing the Onset of Maximal Entanglement inside the Proton in Diffractive Deep Inelastic Scattering
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Entangling Color Centers via Magnon-Antimagnon Pair Creation
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No-Go Theorems for Universal Entanglement Purification
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Entanglement and dynamics of diffusion-annihilation processes with Majorana defects
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Entanglement bounds on the performance of quantum computing architectures
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Entanglement clustering for ground-stateable quantum many-body states
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Heterogeneous multipartite entanglement purification for size-constrained quantum devices
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