Observables and Correlators in Nonrelativistic ABJM Theory

Observables and Gauge Fixing in Spontaneously Broken Gauge Theories

Observables as Twist Anomaly in Vacuum String Field Theory

Observables in effective gravity

Observables in the General Boundary Formulation

Observables in Topological Theories: A Superspace Formulation

Observables in Topological Yang-Mills Theories

Observables in Topological Yang-Mills Theories With Extended Shift Supersymmetry

Observables of Non-Commutative Gauge Theories

Observables of String Field Theory

Observation and superselection in quantum mechanics

Observational Consequences of a Landscape

Observational consequences of chaotic inflation with nonminimal coupling to gravity

Observational Consequences of Quantum Cosmology

Observational Constraints on Braneworld Geometry

Observational Constraints on Cosmic String Production During Brane Inflation

Observational constraints on Horava-Lifshitz cosmology

Observational Constraints on Transverse Gravity: a Generalization of Unimodular Gravity

Observational manifestations of anomaly inflow

Observational Selection Effects in Quantum Cosmology