99% Fidelity: USC Scientists Create First-Ever Quantum Filter To Preserve Entanglement [English]

Authors: USC Viterbi School of Engineering | Source: SciTechDaily | Read the full article in English

In a groundbreaking development, scientists at the University of Southern California have created a new type of optical filter that can effectively preserve quantum entanglement. This innovation is crucial for advancing quantum computing and communication technologies, as entanglement is a fundamental aspect that allows these systems to function. The researchers designed a filter that can isolate and maintain the essential quantum properties of light, even when faced with interference or noise.

The filter operates using a unique principle known as anti-parity-time symmetry, which allows it to manage light in a way that traditional systems cannot. By carefully controlling how light interacts within the filter, the team was able to enhance the stability of entangled states, making them more reliable for practical applications. This advancement could lead to more efficient quantum devices that are easier to integrate into existing technologies.

The experimental results showed that the filter could recover entangled states with over 99% accuracy, demonstrating its potential for real-world use. This research not only highlights the importance of quantum entanglement but also opens new avenues for developing advanced quantum systems that could revolutionize computing and communication.

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