Micro/Nano Resonators in Optical Waveguides for Photon-Phonon Qubits
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Solution Overview
Problem
Existing micro-scale quantum entanglement systems have not been considered for applications in quantum computing, quantum communication, and quantum cryptography, and there is a lack of methods to improve entanglement generation and two-qubit gates.
Innovation Solution
A method of exchanging quantum information between a photon and a micro/nano scale resonant structure is provided, where the resonant structure is placed in an optical waveguide, and a microwave driving signal is applied to cause phonic oscillation and modulate the photon's wavelength, enabling the transfer of quantum information between the photon and the resonant structure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If micro-wave frequency photon stimulation is used to create entangled micro-scale resonator structures, then quantum entanglement can be achieved across physical scale structures, but the application for quantum computing, quantum communication, and quantum cryptography has not been considered
Solution Approach 1:
The patent makes the resonant structure serve multiple functions: it acts as both a quantum memory device for storing quantum states and as an interface for quantum information transfer between photons and phonons. This multi-functionality enables applications in quantum computing, quantum communication, and quantum cryptography simultaneously, resolving the contradiction between reliability and adaptability
2Reliability
If aluminium or other metal drum structures are used to create resonant cavities, then quantum entanglement can be created, but there has been no consideration of how these phenomena can be combined to improve entanglement generation and two-qubit gates
Solution Approach 1:
The patent combines the resonant structure with an optical waveguide, merging the quantum memory function with the photon transmission function. This integration allows photons to interact directly with the resonant structure, enabling improved entanglement generation and two-qubit gates without requiring separate complex systems, thus resolving the contradiction between reliability and device complexity
3Adaptability or versatility
If a resonant structure is placed in an optical waveguide and microwave driving signal is applied, then quantum information can be exchanged between photons and phonons, but the complexity of the system increases
Solution Approach 1:
The resonant structure acts as an intermediary between photons and phonons, enabling quantum information transfer without direct photon-phonon interaction. The optical waveguide serves as another intermediary that guides photons to the resonant structure. This use of intermediaries simplifies the overall system architecture while maintaining high adaptability for quantum information processing
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This method allows for the use of resonant structures as quantum memories or buffers, enabling the transfer of quantum information from photons to resonant structures and vice versa, which is essential for quantum computing, communication, and cryptography applications.
Implementation Method 1
In some examples, the hollow core optical fibre may comprise, contain or include a piezoelectric material or the hollow core optical fibre may comprise, contain or include a piezoelectric layer
Implementation Method 2
applying a microwave driving signal to the resonant structure to cause phonic oscillation of the resonant structure and to modulate a wavelength of the photon
Data Source
AI summary
A method of exchanging quantum information between a photon and a micro/nano scale resonant structure is provided. The method comprises providing the resonant structure (15) in an optical waveguide (10). The method further comprises passing a photon (18) through the resonant structure in the optical waveguide. The method also comprises applying a driving signal (17) to the resonant structure to cause phonic oscillation of the resonant structure and to modulate a wavelength of the photon such that the passing the photon through the resonant structure results in an exchange of quantum information between the photon and a quantum state in a phonon of the resonant structure.