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Macroscopic and deterministic quantum feature generation via phase basis quantization in a cascaded interferometric

¹School of Electrical Engineering and Computer Science, Gwangju Institute of Science and Technology, 123 Chumdangwagi-ro, Buk-gu, Gwangju, 61005, South Korea. bham@gist.ac.kr.

Scientific Reports

|September 25, 2021

Summary

This summary is machine-generated.

Researchers demonstrate macroscopic quantum entanglement using a coherence approach in interferometric systems. This method achieves quantum entanglement via phase basis superposition, paving the way for advanced quantum sensing and metrology applications.

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Area of Science:

Quantum Information Science
Quantum Optics
Metrology

Background:

Quantum entanglement is a key quantum phenomenon, typically observed at microscopic scales.
Macroscopic entanglement is crucial for advancing quantum sensing and metrology beyond classical limits.
Previous work demonstrated entanglement generation in coupled interferometers using classical light via phase basis superposition.

Purpose of the Study:

To present a novel method for achieving macroscopic entanglement in interferometric systems.
To establish phase basis quantization through phase basis superposition, analogous to photon energy quantization.

Main Methods:

Utilizing a coherence approach based on the wave nature of photons.
Employing phase basis superposition in coupled interferometric systems.
Demonstrating entanglement generation without violating quantum mechanics principles.

Main Results:

Successful generation of macroscopic entanglement in an interferometric system.
Phase basis quantization achieved via phase basis superposition.
The method is consistent with the complementarity principle in quantum mechanics.

Conclusions:

The presented method offers a viable route to macroscopic quantum entanglement.
This technique has significant implications for the development of quantum technologies.
The approach provides a new perspective on quantum phenomena in macroscopic systems.