Information encoding and encryption in acoustic analogues of qubits

Area of Science:

• Physics
• Information Science
• Computer Science

Background:

• Cryptography is essential for data security and privacy.
• Traditional cryptographic methods are vulnerable to quantum computing advancements.
• Quantum bits (qubits) offer new possibilities for secure computation.

Purpose of the Study:

• To propose a new cryptography technique resistant to quantum attacks.
• To introduce phi-bits as classical analogues of qubits for encryption.
• To demonstrate a scalable and efficient encryption method.

Main Methods:

• Utilizing driven acoustic metamaterials to create and manipulate phi-bits.
• Representing the state vector of single and multi-phi-bit systems.
• Encoding information within the complex Hilbert space of multi-phi-bit systems.
• Experimentally demonstrating message encryption with a 5 phi-bit system.

Main Results:

• Phi-bits exhibit quantum-like superposition with complex amplitudes and phases.
• A scalable method for encoding and encrypting messages using phi-bits was demonstrated.
• The system showed exceptional security and efficiency in encryption.
• The approach is scalable to N phi-bits with consistent processing time.

Conclusions:

• Phi-bit cryptography offers a promising, quantum-resistant solution for data security.
• The use of acoustic metamaterials provides a practical platform for this new cryptographic approach.
• This scalable method has significant implications for future secure communication systems.