576 citations · 1.1k across the 9 of their papers we have counts for
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gr-qc1995★ 576 cited
Barbero's Hamiltonian derived from a generalized Hilbert-Palatini action
Sören Holst
Barbero recently suggested a modification of Ashtekar's choice of canonical variables for general relativity. Although leading to a more complicated Hamiltonian constraint this mod…
gr-qc1995★ 17 cited
Gott time machines in the Anti-de Sitter space
Sören Holst
In 1991 Gott presented a solution of Einstein's field equations in 2+1 dimensions with that contained closed timelike curves (CTC's). This solution was remarkable because at…