934 citations · 3.5k across the 98 of their papers we have counts for
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Observables in effective gravity
Steven B. Giddings, Donald Marolf, James B. Hartle
We address the construction and interpretation of diffeomorphism-invariant observables in a low-energy effective theory of quantum gravity. The observables we consider are construc…
Excess Baggage
James B. Hartle
Many advances in physics have in common that some idea which was previously accepted as fundamental, general, and inescapable was subsequently seen to be consequent, special, and d…
General Relativity in the Undergraduate Physics Curriculum
James B. Hartle
Einstein's general relativity is increasingly important in contemporary physics on the frontiers of both the very largest distance scales (astrophysics and cosmology) and the very…
Representations of Spacetime Alternatives and Their Classical Limits
August W. Bosse, James B. Hartle
Different quantum mechanical operators can correspond to the same classical quantity. Hermitian operators differing only by operator ordering of the canonical coordinates and momen…