Effective Vacuum Response and Observable-Dependent Propagation in Weak-Field Gravity

Key Points

• This research aims to develop a framework for understanding vacuum response in weak-field gravity and its implications for observable phenomena.
• Employed covariant tensor-scalar vacuum-response framework
• Conducted numerical analyses to study propagation effects
• Examined chromatic cosmological effects through observable-dependent tests.
• Demonstrated novel vacuum propagation behaviors in weak-field scenarios.
• Identified significant chromatic effects influencing cosmological observations.
• Validated numerical analyses to support the theoretical framework.