Quantum mechanics in fractional and other anomalous spacetimes

Giuseppe Nardelli, Gianluca Calcagni, Marco Scalisi

Risultato della ricerca: Contributo in rivistaArticolo in rivistapeer review

30 Citazioni (Scopus)

Abstract

We formulate quantum mechanics in spacetimes with real-order fractional geometry and more general factorizable measures. In spacetimes where coordinates and momenta span the whole real line, Heisenberg’s principle is proven and the wave-functions minimizing the uncertainty are found. In spite of the fact that ordinary time and spatial translations are broken and the dynamics is not unitary, the theory is in one-to-one correspondence with a unitary one, thus allowing us to employ standard tools of analysis. These features are illustrated in the examples of the free particle and the harmonic oscillator. While fractional (and the more general anomalous-spacetime) free models are formally indistinguishable from ordinary ones at the classical level, at the quantum level they differ both in the Hilbert space and for a topological term fixing the classical action in the path integral formulation. Thus, all non-unitarity in fractional quantum dynamics is encoded in a contribution depending only on the initial and final state.
Lingua originaleEnglish
pagine (da-a)N/A-N/A
Numero di pagine102110
RivistaJournal of Mathematical Physics
Volume53
DOI
Stato di pubblicazionePubblicato - 2012

Keywords

  • fractional space time
  • quantum mechanics in fractional spaces

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