Flavour-Condensate-induced Breaking of Supersymmetry in Free Wess-Zumino Fluids

Abstract

Recently we argued that a particular model of string-inspired quantum space-time foam (D-foam) may induce oscillations and mixing among flavoured particles. As a result, rather than the mass-eigenstate vacuum, the correct ground state to describe the underlying dynamics is the flavour vacuum, proposed some time ago by Blasone and Vitiello as a description of quantum field theories with mixing. At the microscopic level, the breaking of target-space supersymmetry is induced in our space-time foam model by the relative transverse motion of brane defects. Motivated by these results, we show that the flavour vacuum, introduced through an inequivalent representation of the canonical (anti-) commutation relations, provides a vehicle for the breaking of supersymmetry (SUSY) at a low-energy effective field theory level; on considering the flavour-vacuum expectation value of the energy-momentum tensor and comparing with the form of a perfect relativistic fluid, it is found that the bosonic sector contributes as dark energy while the fermion contribution is like dust. This indicates a strong and novel breaking of SUSY, of a non-perturbative nature, which may characterize the low energy field theory of certain quantum gravity models.

Discussion added in sections II and IV on quantum-gravity induced flavour mixing, references added, conclusions unchanged

References in corpus (14)

• Derivation of a Vacuum Refractive Index in a Stringy Space-Time Foam Model
• The LHC String Hunter's Companion
• Time Delays of Strings in D-particle Backgrounds and Vacuum Refractive Indices
• Right-handed Neutrinos in F-theory Compactifications
• Neutrino mixing as a source of dark energy
• Dark energy and particle mixing
• The LHC String Hunter's Companion (II): Five-Particle Amplitudes and Universal Properties
• Flavour Condensates in Brane Models and Dark Energy
• Towards a microscopic construction of flavour vacua from a space-time foam model
• A model for right-handed neutrino magnetic moments
• Right-handed neutrino magnetic moments
• Baryogenesis from a right-handed neutrino condensate
• R-parity Violating Right-Handed Neutrino in Gravitino Dark Matter Scenario
• Evidence for right-handed neutrinos at a neutrino factory

Cited by in corpus (10)

• A field-theoretical approach to entanglement in neutrino mixing and oscillations
• Dynamical generation of field mixing via flavor vacuum condensate
• Dark matter and dark energy induced by condensates
• Condensate Structure of D-particle Induced Flavour Vacuum
• Some non-trivial aspects of Poincaré and CPT invariance of flavor vacuum
• Spontaneous supersymmetry breaking probed by geometric invariants
• Spontaneous Supersymmetry Breaking Induced by Vacuum Condensates
• Physical flavor neutrino states
• A framework for dynamical generation of flavor mixing
• Dark Matter and Dark Energy via Non-Perturbative (Flavour) Vacua