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43 papers · 1 filter
Phase transitions for deformations of JT supergravity and matrix models
Felipe Rosso, Gustavo J. Turiaci
We analyze deformations of Jackiw-Teitelboim (JT) supergravity by adding a gas of defects, equivalent to changing the dilaton potential. We compute the Euclidean pa…
Bulk and Boundary Quantum Phase Transitions in a Square Rydberg Atom Array
Marcin Kalinowski, Rhine Samajdar, Roger G. Melko +3
Motivated by recent experimental realizations of exotic phases of matter on programmable quantum simulators, we carry out a comprehensive theoretical study of quantum phase transit…
New Dressing Factors for AdS3/CFT2
Sergey Frolov, Alessandro Sfondrini
The worldsheet S matrix of strings on the background is almost entirely fixed by symmetries, up to five functions -- the dressing factors. These must sa…
Eclipse timing the Milky Way's gravitational potential
Sukanya Chakrabarti, Daniel J. Stevens, Jason Wright +4
We show that a small, but \textit{measurable} shift in the eclipse mid-point time of eclipsing binary (EBs) stars of 0.1 seconds over a decade baseline can be used to direct…
Nonperturbative Negative Geometries: Amplitudes at Strong Coupling and the Amplituhedron
Nima Arkani-Hamed, Johannes Henn, Jaroslav Trnka
The amplituhedron determines scattering amplitudes in planar super Yang-Mills by a single "positive geometry" in the space of kinematic and loop variables. We study a…
Exploring the s-process history in the Galactic disk: Cerium abundances and gradients in Open Clusters from the OCCAM/APOGEE sample
J. V. Sales-Silva, S. Daflon, K. Cunha +21
The APOGEE Open Cluster Chemical Abundances and Mapping (OCCAM) survey is used to probe the chemical evolution of the s-process element cerium in the Galactic disk. Cerium abundanc…