Research
My main interest lies in the realm of classical ‘relativistic’ gravity as described by general relativity and its modifications, particularly in its relation to Galilei-relativistic physics in terms of post-Newtonian expansions.
I believe that for a proper understanding of such relations, one needs to work in a well-defined conceptual framework, enabling the use of systematic methods. In particular, one needs a clear geometric setting in which to analyse the problem at hand. For most of my work in (post-)Newtonian gravity, this geometric setting is given by degenerate geometry, specifically Galilei geometry—the geometry of Newton–Cartan gravity—and modifications thereof.
On a more general note, I am interested in conceptual aspects of (Poincaré-)relativistic physics in a wider sense, and of differential-geometric structures in physics.
Publications
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P K Schwartz, A L von Blanckenburg
Comment on ‘The Classical Limit of Teleparallel Gravity’
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P K Schwartz, A L von Blanckenburg
The Newtonian limit of orthonormal frames in metric theories of gravity
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P K Schwartz
The classification of general affine
connections in Newton–Cartan geometry: Towards metric-affine Newton–Cartan gravity
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A L von Blanckenburg, P K Schwartz
On gauge transformations in twistless torsional Newton–Cartan geometry
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M Werner, P K Schwartz, J-N Kirsten-Siemß, N Gaaloul, D Giulini, K Hammerer
Atom interferometers in weakly curved spacetimes using Bragg diffraction and Bloch oscillations
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A Alibabaei, P K Schwartz, D Giulini
Geometric post-Newtonian description of massive spin-half particles in curved spacetime
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P K Schwartz
Teleparallel Newton–Cartan gravity
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D Giulini, A Großardt, P K Schwartz
Coupling Quantum Matter and Gravity
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P K Schwartz, D Giulini
Classical perspectives on the Newton–Wigner position observable
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P K Schwartz, D Giulini
Post-Newtonian Hamiltonian description of an atom in a weak gravitational field
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P K Schwartz, D Giulini
Post-Newtonian corrections to Schrödinger equations in gravitational fields
Thesis
My doctoral thesis:
Post-Newtonian Description of Quantum Systems in Gravitational Fields