Daine L Danielson
University of Chicago, Physics, Graduate Student
- University of California, Davis, Physics, AlumnusLos Alamos National Laboratory, Theoretical Division, Undergraduateadd
Research Interests:
Research Interests:
Research Interests:
Research Interests:
Research Interests:
Research Interests:
Research Interests:
Research Interests:
Proceedings for the 14th installment of Applied Antineutrino Physics (AAP) workshop series.
Research Interests:
Research Interests:
Research Interests:
Some opportunities for engagement between the two communities include bi-annual Applied Antineutrino Physics conferences, collaboration with U.S. National Laboratories engaging in this research, and occasional NNSA funding opportunities... more
Some opportunities for engagement between the two communities include bi-annual Applied Antineutrino Physics conferences, collaboration with U.S. National Laboratories engaging in this research, and occasional NNSA funding opportunities supporting a blend of nonproliferation and basic science R&D, directed at the U.S. academic community.
Research Interests:
We argue that if the Newtonian gravitational field of a body can mediate entanglement with another body, then it should also be possible for the body producing the Newtonian field to entangle directly with on-shell gravitons. Our... more
We argue that if the Newtonian gravitational field of a body can mediate entanglement with another body, then it should also be possible for the body producing the Newtonian field to entangle directly with on-shell gravitons. Our arguments are made by revisiting a gedankenexperiment previously analyzed by Belenchia et al. [1, 2], which showed that a quantum superposition of a massive body requires both quantized gravitational radiation and local vacuum fluctuations of the spacetime metric in order to avoid contradictions with complementarity and causality. We provide a precise and rigorous description of the entanglement and decoherence effects occurring in this gedankenexperiment, thereby significantly improving upon the back-of-the-envelope estimates given in [1, 2] and also showing that their conclusions are valid in much more general circumstances. As a by-product of our analysis, we show that under the protocols of the gedankenexperiment, there is no clear distinction between e...
Research Interests:
Recently, Blázquez-Salcedo, Knoll, and Radu (BSKR) have given a class of static, spherically symmetric traversable wormhole spacetimes with Dirac and Maxwell fields. The BSKR wormholes are obtained by joining a classical solution to the... more
Recently, Blázquez-Salcedo, Knoll, and Radu (BSKR) have given a class of static, spherically symmetric traversable wormhole spacetimes with Dirac and Maxwell fields. The BSKR wormholes are obtained by joining a classical solution to the Einstein-Dirac-Maxwell (EDM) equations on the "up" side of the wormhole (r ≥ 0) to a corresponding solution on the "down" side of the wormhole (r ≤ 0). However, it can be seen that the BSKR metric fails to be C^3 on the wormhole throat at r=0. We prove that if the matching were done in such a way that the resulting spacetime metric, Dirac field, and Maxwell field comprised a solution to the EDM equations in a neighborhood of r=0, then all of the fields would be smooth at r=0 in a suitable gauge. Thus, the BSKR wormholes cannot be solutions to the EDM equations. The failure of the BSKR wormholes to solve the EDM equations arises both from the failure of the Maxwell field to satisfy the required matching conditions (which implies th...
Research Interests:
Recently, Blázquez-Salcedo, Knoll, and Radu (BSKR) have given a class of static, spherically symmetric traversable wormhole spacetimes with Dirac and Maxwell fields. The BSKR wormholes are obtained by joining a classical solution to the... more
Recently, Blázquez-Salcedo, Knoll, and Radu (BSKR) have given a class of static, spherically symmetric traversable wormhole spacetimes with Dirac and Maxwell fields. The BSKR wormholes are obtained by joining a classical solution to the Einstein-DiracMaxwell (EDM) equations on the “up” side of the wormhole (r ≥ 0) to a corresponding solution on the “down” side of the wormhole (r ≤ 0). However, it can be seen that the BSKR metric fails to be C3 on the wormhole throat at r = 0. We prove that if the matching were done in such a way that the resulting spacetime metric, Dirac field, and Maxwell field comprised a solution to the EDM equations in a neighborhood of r = 0, then all of the fields would be smooth at r = 0 in a suitable gauge. Thus, the BSKR wormholes cannot be solutions to the EDM equations. The failure of the BSKR wormholes to solve the EDM equations arises both from the failure of the Maxwell field to satisfy the required matching conditions (which implies the presence of an...