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Related Experiment Video

Updated: Jul 13, 2026

Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators

Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators

Published on: May 30, 2014

Quantum detection of wormholes.

Carlos Sabín¹

¹Instituto de Física Fundamental, CSIC, Serrano 113-bis, 28006, Madrid, Spain. csl@iff.csic.es.

Scientific Reports

|April 8, 2017

Summary

Quantum metrology can detect distant wormholes by measuring phase shifts in electromagnetic fields. This method is robust and feasible with current laser interferometry technology.

Area of Science:

Quantum physics
Astrophysics
General relativity

Background:

Wormholes are hypothetical topological features that could connect distant points in spacetime.
Detecting wormholes is challenging due to their potential distance and the weak gravitational effects they might produce.

Purpose of the Study:

To propose a novel method for detecting wormholes using quantum metrology.
To investigate the feasibility of detecting wormholes with current and near-future experimental capabilities.

Main Methods:

Utilizing coherent states of the electromagnetic field.
Analyzing phase shifts induced by wormhole throat radius.
Employing homodyne measurements for detection.
Simulating realistic parameters from long-baseline laser interferometry.

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Main Results:

A slight phase shift in the electromagnetic field is dependent on the wormhole's throat radius.
This phase shift is detectable even over long propagation distances and far from the wormhole.
The detection scheme is robust against optical losses and initial mixedness of the quantum state.

Conclusions:

Quantum metrology offers a viable pathway for detecting distant wormholes.
The proposed method is experimentally achievable with state-of-the-art laser interferometry.
This work opens new avenues for observational tests of general relativity and exotic objects.