Fundamental physics in space: a Quantum-Gravity perspective

Abstract

I consider the possibility that space experiments be used to search for quantum properties of spacetime. On the basis of recent quantum-gravity results, I argue that insight on some quantum properties of spacetime can be obtained with experiments planned for the International Space Station, such as AMS and EUSO, and with satellite gamma-ray telescopes, such as GLAST.

20 pages, LaTex. To appear in a special issue "Fundamental physics on the International Space Station and in space" of General Relativity and Gravitation

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• Noncommutative Field Theory
• Discreteness of area and volume in quantum gravity
• Quantum gravity and minimum length
• Noncommutative Perturbative Dynamics
• Relativity in space-times with short-distance structure governed by an observer-independent (Planckian) length scale
• Nonstandard optics from quantum spacetime
• Bicrossproduct structure of $\kappa$-Poincare group and non-commutative geometry
• Generalized Lorentz invariance with an invariant energy scale
• Loop Quantum Gravity
• Extension of the Cosmic-Ray Energy Spectrum Beyond the Predicted Greisen-Zatsepin-Kuz'min Cutoff
• Gauge Theory on Noncommutative Spaces
• CPT, Strings, and Meson Factories
• Quantum gravity corrections to neutrino propagation
• D-branes and Short Distances in String Theory
• The IR/UV Connection in the Non-Commutative Gauge Theories
• Classical and Quantum Mechanics of Free \k Relativistic Systems
• Planck-scale deformation of Lorentz symmetry as a solution to the UHECR and the TeV-$\gamma$ paradoxes
• Distance Measurement and Wave Dispersion in a Liouville-String Approach to Quantum Gravity
• Limits to Quantum Gravity Effects from Observations of TeV Flares in Active Galaxies
• An interferometric gravitational wave detector as a quantum-gravity apparatus
• Relic Gravitational Waves from String Cosmology
• Invariance Violation Extends the Cosmic Ray Horizon ?
• Observer-independent quanta of mass and length
• Probing The Structure of Space-Time with Cosmic Rays
• An infrared background--TeV gamma-ray crisis?
• A Comment on Zero-brane Quantum Mechanics
• Quantum Measurement, Gravitation, and Locality
• Coproduct and star product in field theories on Lie-algebra non-commutative space-times
• Precision Tests of CPT Symmetry and Quantum Mechanics in the Neutral Kaon System
• Violation of CPT and Quantum Mechanics in the K0--K0bar System
• Limits on the Measurability of Space-time Distances in (the Semi-classical Approximation of) Quantum Gravity
• Loop Quantum Gravity and Ultra High Energy Cosmic Rays
• Measuring the foaminess of space-time with gravity-wave interferometers
• Twisting of quantum differentials and the Planck scale Hopf algebra
• Noncommutative field theory and violation of translation invariance
• Space-time quantum solves three experimental paradoxes
• Quantum Gravity - Testing Time for Theories
• Detection of space-time fluctuations by a model matter interferometer
• Probing Quantum Violations of the Equivalence Principle
• OPTIS - a satellite-based test of Special and General Relativity
• Phenomenology of Particle Production and Propagation in String-Motivated Canonical Noncommutative Spacetime
• Energy-momentum uncertainties as possible origin of threshold anomalies in UHECR and TeV-gamma ray events
• What can the quantum liquid say on the brane black hole, the entropy of extremal black hole and the vacuum energy?
• Group velocity in noncommutative spacetime
• Testing the Dirac equation
• The Atick-Witten free energy, closed tachyon condensation and deformed Poincare' symmetry

Cited by in corpus (6)

• Ultimate decoherence border for matter-wave interferometry
• Exotic galilean symmetry and non-commutative mechanics
• Spectral Line Broadening and Angular Blurring due to Spacetime Geometry Fluctuations
• Enhanced Geometry Fluctuations in Minkowski and Black Hole Spacetimes
• Searching for Lorentz Violation
• Local Space-Time Curvature Effects on Quantum Orbital Angular Momentum