58 citations · 302 across the 12 of their papers we have counts for
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quant-ph2012★ 32 cited
Negative Probabilities, Fine's Theorem and Linear Positivity
J. J. Halliwell, J. M. Yearsley
Many situations in quantum theory and other areas of physics lead to quasi-probabilities which seem to be physically useful but can be negative. The interpretation of such objects…
gr-qc2012★ 20 cited
Pitfalls of Path Integrals: Amplitudes for Spacetime Regions and the Quantum Zeno Effect
J. J. Halliwell, J. M. Yearsley
Path integrals appear to offer natural and intuitively appealing methods for defining quantum-mechanical amplitudes for questions involving spacetime regions. For example, the ampl…