For purchase of this item, please read the instructions
Volume 14: Pages 93-105, 2001
Possible Quantum Gravity Effects in a Charged Bose Condensate Under a Variable e.m. Field
Giovanni Modanese 1, John Schnurer 2
1I.N.F.N.—Gruppo Collegato di Trento, Dipartimento di
Fisica dell'Università, I‐38050 Povo (TN), Italy
2Physics Engineering, P.O. Box CN 446, Yellow Springs, Ohio 45387‐0466 U.S.A.
In the weak field approximation to quantum gravity, a “local” positive cosmological term μ2(x) corresponds to a local negative squared mass term in the Lagrangian and may thus induce instability and local pinning of the gravitational field. Such a term can be produced by coupling to an external Bose condensate. In the functional integral, the local pinning acts as a constraint on the field configurations. We discuss this model in detail and apply it to a phenomenological analysis of recent experimental results.
Keywords: general relativity, quantum gravity, experimental gravitation, Bose condensates, high‐Tc superconductors
Received: February 27, 1998; Published online: December 15, 2008
