On the Schrödinger -Newton equation and its symmetries: a geometric view
Résumé
The Schrödinger-Newton (SN) equation is recast on purely geometrical grounds, namely in terms of Bargmann structures over (n + 1)-dimensional Newton-Cartan (NC) spacetimes. Its maximal group of invariance, which we call the SN group, is determined as the group of conformal Bargmann automorphisms that preserve the coupled Schrödinger and NC gravitational field equations. Canonical unitary representations of the SN group are worked out, helping us recover, in particular, a very specific occurrence of dilations with dynamical exponent z = (n + 2)/3.
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