130 citations · 505 across the 12 of their papers we have counts for
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gr-qc2021★ 8 cited
Semiclassical limit problems with concurrent use of several clocks in quantum cosmology
Bruno Alexandre, João Magueijo
We revisit a recent proposal for a definition of time in quantum cosmology, to investigate the effects of having more than one possible type of clock "at the same time". We use as…
physics.space-ph2021★ 30 cited
The current state and future directions of modeling thermosphere density enhancements during extreme magnetic storms
Denny M. Oliveira, Eftyhia Zesta, Piyush M. Mehta +4
Satellites, crewed spacecraft and stations in low-Earth orbit (LEO) are very sensitive to atmospheric drag. A satellite's lifetime and orbital tracking become increasingly inaccura…