Carroll-Schrödinger Equation
arXiv:2403.11212 · doi:10.1038/s41598-024-82010-9
Abstract
The Poincaré symmetry can be contracted in two ways to yield the Galilei symmetry and the Carroll symmetry. The well-known Schrödinger equation exhibits the Galilei symmetry and is a fundamental equation in Galilean quantum mechanics. However, the question remains: what is the quantum equation that corresponds to the Carroll symmetry? In this paper, we derive a novel equation in two dimensions, called the ``Carroll-Schrödinger equation'', which describes the quantum dynamics in the Carrollian framework. We also construct the so-called ``Carroll-Schrödinger algebra'' in two dimensions, which is a conformal extension of the centrally extended Carroll algebra with a dynamical exponent of . We demonstrate that this algebra is the symmetry algebra of the Carroll-Schrödinger field theory. Moreover, we apply the method of canonical quantization to the theory and utilize it to compute the transition amplitude. Finally, we discuss higher dimensions and identify the so-called ``generalized Carroll-Schrödinger equation''.
arXiv comment9 pages; v2: Infinite dimensional algebra added. v3: added appendices B (invariance of the action), C (canonical quantization), and D (transition amplitude). v4: table of contents added, three appendices moved to the main text, more clarifications added, accepted version in Scientific Reports
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