Quantum Fourier transform is the building block for creating entanglement

Area of Science:

• Quantum Information Science
• Quantum Computing
• Quantum Communication

Background:

• Entanglement is a fundamental quantum phenomenon crucial for quantum technologies.
• Current entanglement analysis primarily relies on temporal approaches.
• Quantum Fourier Transform (QFT) is a key quantum algorithm with potential applications beyond computation.

Purpose of the Study:

• To demonstrate that quantum entanglement can be exclusively constructed using quantum Fourier transform (QFT) blocks.
• To establish a link between entanglement and QFT, enabling spectral analysis of entanglement.
• To develop novel, high-performance, and fault-tolerant quantum protocols.

Main Methods:

• Utilizing quantum Fourier transform (QFT) blocks as the sole constituents for creating entangled states.
• Developing a theoretical framework to bridge entanglement properties with QFT spectral characteristics.
• Designing new quantum protocols based on the spectral analysis of entanglement.

Main Results:

• Proof of concept that entanglement can be exclusively constituted by QFT blocks.
• Establishment of a spectral analysis method for entanglement, complementing temporal approaches.
• Identification of pathways for developing enhanced quantum computing and communication protocols.

Conclusions:

• Quantum entanglement can be fundamentally understood and constructed through QFT.
• The integration of spectral analysis via QFT offers a new paradigm for entanglement manipulation.
• This research paves the way for more robust and efficient quantum technologies, including the quantum internet.