Weyl current, scale-invariant inflation, and Planck scale generation
- Univ. of Oxford (United Kingdom). Dept. of Physics
- Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
- Univ. of Oxford (United Kingdom). Rudolf Peierls Centre for Theoretical Physics
Scalar fields, $$\phi$$i, can be coupled nonminimally to curvature and satisfy the general criteria: (i) the theory has no mass input parameters, including MP=0; (ii) the $$\phi$$i have arbitrary values and gradients, but undergo a general expansion and relaxation to constant values that satisfy a nontrivial constraint, K($$\phi$$i)=constant; (iii) this constraint breaks scale symmetry spontaneously, and the Planck mass is dynamically generated; (iv) there can be adequate inflation associated with slow roll in a scale-invariant potential subject to the constraint; (v) the final vacuum can have a small to vanishing cosmological constant; (vi) large hierarchies in vacuum expectation values can naturally form; (vii) there is a harmless dilaton which naturally eludes the usual constraints on massless scalars. Finally, these models are governed by a global Weyl scale symmetry and its conserved current, Kμ. At the quantum level the Weyl scale symmetry can be maintained by an invariant specification of renormalized quantities.
- Research Organization:
- Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), High Energy Physics (HEP)
- Grant/Contract Number:
- AC02-07CH11359
- OSTI ID:
- 1345633
- Alternate ID(s):
- OSTI ID: 1343347
- Report Number(s):
- FERMILAB-PUB-16-458-T; arXiv:1610.09243; PRVDAQ; 1495005
- Journal Information:
- Physical Review D, Vol. 95, Issue 4; ISSN 2470-0010
- Publisher:
- American Physical Society (APS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
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