Solid Neon Qubit Platform for Scalable Quantum Computing
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Solution Overview
Problem
Current qubit devices face challenges with short coherence times, limited scalability, and slow operation, making them unsuitable for robust and efficient quantum computing applications.
Innovation Solution
A qubit device utilizing a substrate with solid neon, where a trap electrode and guard electrodes create a confining electric field to trap a single electron, enabling long coherence times and fast operation by integrating the electron in an ultraclean low-noise environment, allowing for scalability in quantum computing architectures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of stationary object
If conventional qubit devices are used, then device complexity is reduced, but coherence time is very short
Solution Approach 1:
The patent changes the physical state of neon from gas to solid phase, which fundamentally alters the noise environment and enables long coherence times. This phase transition parameter change allows the qubit to achieve >200 ns coherence time while maintaining a relatively simple device structure with substrate, trap electrode, and guard electrodes.
Solution Approach 2:
The patent utilizes solid neon as an inert environment to isolate the qubit element from harmful interactions. The solid neon substrate provides a clean, noise-free environment that protects the trapped electron from decoherence, achieving long coherence times without requiring complex shielding or isolation systems.
2Speed
If conventional qubit devices are used, then device structure is simpler, but operation speed is slow
Solution Approach 1:
The patent achieves fast operation (≤10 ns) by changing the physical parameters of the qubit system, specifically using solid neon to enable rapid electron trapping and release. This allows multiple operations to be performed within the coherence time without requiring complex fast-switching circuits.
Solution Approach 2:
The solid neon substrate provides self-service functionality by passively confining and releasing electrons through its physical properties. The trap electrode and guard electrodes work with the solid neon material itself to achieve fast electron manipulation, reducing the need for additional complex actuation mechanisms.
3Adaptability or versatility
If bulky setups are used for qubit devices, then qubit performance is improved, but scalability is limited
Solution Approach 1:
The patent segments the qubit device into discrete, modular components: substrate, trap electrode, and guard electrodes. This segmentation enables the device to be scaled from single-qubit to multi-qubit systems by simply adding more modular units, achieving scalability without requiring bulky integrated setups.
Solution Approach 2:
The patent transitions from three-dimensional bulky setups to a two-dimensional planar architecture using solid neon substrate. This dimensional change allows for compact integration and scalable fabrication processes, enabling qubit systems to be expanded without proportionally increasing device volume.
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
The device achieves coherence times greater than 200 ns and operation times of approximately 10 ns or less, with potential for coherence times over 1 second, enhancing scalability and performance in quantum computing systems.
Implementation Method 1
A trap electrode is disposed adjacent to the substrate and configured to provide a confining electrical field to a confining region adjacent to the substrate
Implementation Method 2
A first set of guard electrodes are configured to provide a variable electric potential to a first guard region adjacent to the confining region
Data Source
AI summary
Qubit devices require fast operation, long coherence, and large scalability to be viable for implementation in quantum computing systems. A qubit platform device having long coherence, scalability, and fast operation includes a substrate, or trap region, configured to structurally support solid neon thereon. A trap electrode is configured to provide a trap voltage to the trap region and which creates a confining electrical field to a confining region adjacent to the trap region. The confining region being a region of space to confine an electron therein, confining the electron against the solid neon. First and second sets of guard electrodes are configured to provide variable electric potentials to first and second guard regions to allow for trapping and manipulation of a single electron in the confining region.