2k citations · 12k across the 281 of their papers we have counts for
11 papers · 1 filter
Hypothetical Gravity Control and Possible Influence on Space Propulsion
M. Tajmar, O. Bertolami
In nearly all concepts invoked or proposed to change or shield gravity it is intuitively assumed that manipulation of gravity automatically leads to a breakthrough for propulsion.…
Bounds on Cubic Lorentz-Violating Terms in the Fermionic Dispersion Relation
O. Bertolami, J. G. Rosa
We study the recently proposed Lorentz-violating dispersion relation for fermions and show that it leads to two distinct cubic operators in the momentum. We compute the leading ord…
Supernovae constraints on models of dark energy revisited
M. C. Bento, O. Bertolami, N. M. C. Santos +1
We use the Type Ia Supernova gold sample data of Riess {\it et al} in order to constrain three models of dark energy. We study the Cardassian model, the Dvali-Turner gravity modifi…
Pioneer's Final Riddle
O. Bertolami, J. Páramos
Launched more than thirty years ago and now drifting in space with no further contact, the Pioneer 10 and 11 spacecraft are currently at the center of a small but developing concer…
What is fair to ask Society to fund ?
Orfeu Bertolami
Our world is strongly driven by technological developments that continuously create new markets and shape individual taste and choice. The scale of dissemination of the most recent…
Astrophysical Constraints on Scalar Field Models
O. Bertolami, J. Paramos
We use stellar structure dynamics arguments to extract bounds on the relevant parameters of scalar field models: the putative scalar field mediator of a fifth force with a Yukawa p…