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4 papers
Menagerie of Euclidean constructions for 3D holographic cosmologies
Mark Van Raamsdonk, Alejandro Vilar López
We construct a large number of exact solutions of three-dimensional gravity with heavy matter particles that generalize the construction of Antonini, Sasieta, and Swingle (AS…
Evolution of the eigenvalues and eigenstates of the single-particle reduced density operator during two-particle scattering
Arsam Najafian, Mark Van Raamsdonk
A particle initially in a pure state but interacting with some environment evolves into a discrete ensemble of pure states, the eigenstates of its reduced density operator, with en…
Suggestions of decreasing dark energy from supernova and BAO data: an update
Mark Van Raamsdonk, Chris Waddell
In a previous work 2305.04946, we found that supernova and baryon acoustic oscillation data support the hypothesis that late time cosmic acceleration is caused by the potential ene…
Ordinary wormholes
Alexander Maloney, Viraj Meruliya, Mark Van Raamsdonk
Euclidean wormholes have played a key role in the recent ``disorder averaged" approaches to quantum gravity and holography, but are typically only considered in somewhat special th…