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pro vyhledávání: '"Schwartz, A. K."'
We critically discuss the claims of a recent article regarding the Newtonian limit of the teleparallel equivalent of general relativity (TEGR) in pure-tetrad formulation (arXiv:2406.17594). In particular, we refute this article's purported main resul
Externí odkaz:
http://arxiv.org/abs/2410.02839
We extend well-known results on the Newtonian limit of Lorentzian metrics to orthonormal frames. Concretely, we prove that, given a one-parameter family of Lorentzian metrics that in the Newtonian limit converges to a Galilei structure, any family of
Externí odkaz:
http://arxiv.org/abs/2410.01800
Autor:
Schwartz, Philip K.
We give a full classification of general affine connections on Galilei manifolds in terms of independently specifiable tensor fields. This generalises the well-known case of (torsional) Galilei connections, i.e. connections compatible with the metric
Externí odkaz:
http://arxiv.org/abs/2403.15460
We observe that in type I twistless torsional Newton--Cartan (TTNC) geometry, one can always find (at least locally) a gauge transformation that transforms a specific locally Galilei-invariant function -- that we dub the `locally Galilei-invariant po
Externí odkaz:
http://arxiv.org/abs/2402.05105
Autor:
Werner, Michael, Schwartz, Philip K., Kirsten-Siemß, Jan-Niclas, Gaaloul, Naceur, Giulini, Domenico, Hammerer, Klemens
Publikováno v:
Phys. Rev. D 109, 022008 (2024)
We present a systematic approach to determine all relativistic phases up to $\mathcal{O}(c^{-2})$ in light-pulse atom interferometers in weakly curved spacetime that are based on elastic scattering, namely Bragg diffraction and Bloch oscillations. Ou
Externí odkaz:
http://arxiv.org/abs/2310.03719
Publikováno v:
Classical and Quantum Gravity 40, 235014 (2023)
We consider the Dirac equation coupled to an external electromagnetic field in curved four-dimensional spacetime with a given timelike worldline $\gamma$ representing a classical clock. We use generalised Fermi normal coordinates in a tubular neighbo
Externí odkaz:
http://arxiv.org/abs/2307.04743
Autor:
Schwartz, Philip K.
Publikováno v:
Classical and Quantum Gravity 40, 105008 (2023)
We discuss a teleparallel version of Newton--Cartan gravity. This theory arises as a formal large-speed-of-light limit of the teleparallel equivalent of general relativity (TEGR). Thus, it provides a geometric formulation of the Newtonian limit of TE
Externí odkaz:
http://arxiv.org/abs/2211.11796
Publikováno v:
in: C. Pfeifer, C. L\"ammerzahl (eds.), Modified and Quantum Gravity, Lecture Notes in Physics 1017 (Springer, Cham, 2023)
In this contribution we deal with several issues one encounters when trying to couple quantum matter to classical gravitational fields. We start with a general background discussion and then move on to two more technical sections. In the first techni
Externí odkaz:
http://arxiv.org/abs/2207.05029
Autor:
Baird, Megan C., Likhite, Shibi B., Vetter, Tatyana A., Caporale, Joseph R., Girard, Holly B., Roussel, Florence S., Howard, Abigail E., Schwartz, Maura K., Reed, Addison R., Kaleem, Abuzar, Zhang, Xiaojin, Meyer, Kathrin C.
Publikováno v:
In Molecular Therapy - Methods & Clinical Development 12 September 2024 32(3)
Publikováno v:
In Journal of Membrane Science January 2025 713