Electric-Discharge Atomic Oven for Fast Ion Trap Loading
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Solution Overview
Problem
Current atomic oven technologies for generating atomic flux, such as resistive heating and high intensity laser ablation, are either too slow or require complex optics, making them unsuitable for efficient use in quantum information processing systems.
Innovation Solution
An atomic oven design utilizing a cathode and anode with a power supply to create an electric discharge that ablates or evaporates the source material, producing a stream of neutral and charged particles, which can be directed through an opening to a trap for ion trapping.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If resistive heating is used to generate atomic flux, then the process is simple to implement, but the heating speed is too slow for quantum information processing systems
Solution Approach 1:
The patent replaces the mechanical resistive heating system with an electric discharge-based ablation system. Instead of using current through mechanical pieces to heat the source material, the invention uses electron discharge from a cathode to directly ablate the anode material, achieving rapid atomic flux generation without the slowness of thermal conduction methods.
Solution Approach 2:
The patent utilizes phase transition from solid to vapor/gas phase through electric discharge ablation. The electron discharge causes localized heating and direct sublimation/evaporation of the source material at the anode, producing atomic flux rapidly without requiring gradual thermal heating of the entire structure.
2Productivity
If high intensity laser ablation is used to generate atomic flux, then the ablation speed is rapid, but the system requires complex optics and fittings
Solution Approach 1:
The patent replaces the optical laser ablation system with an electric discharge system. Instead of using high-intensity laser beams requiring complex optics, mirrors, and fittings, the invention uses an electric field to accelerate electrons from a cathode to ablate the anode material, achieving similar rapid ablation effects with a simpler electromagnetic system.
Solution Approach 2:
The patent changes the fundamental parameter from optical energy delivery to electrical energy delivery. By using voltage to accelerate electrons and create plasma discharge, the system achieves rapid material ablation without needing to manage complex optical parameters such as beam focusing, wavelength selection, and optical path management.
3Temperature
If traditional heating methods are used, then the source material can be heated to sublimation, but excessive heating degrades the vacuum environment
Solution Approach 1:
The patent applies local quality by concentrating the heating effect only at the anode surface where material ablation is needed. The electric discharge creates a localized plasma region and electron beam that heats and ablates material at the target location without requiring widespread heating of the entire vacuum chamber, thus minimizing vacuum degradation.
Solution Approach 2:
The patent uses rapid electric discharge ablation to quickly remove material in short pulses, minimizing the total heating time. This rapid process allows the system to achieve sublimation and atomic flux generation before significant heat can diffuse to surrounding components and degrade the vacuum environment.
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 approach provides a rapid and efficient generation of atomic flux with minimal heating and vacuum degradation, suitable for quantum information processing systems, enabling effective trapping and manipulation of ions.
Implementation Method 1
a power supply that provides a voltage between the cathode and the anode, wherein an application of the voltage causes multiple electrons from the cathode to ablate the source material from the anode
Implementation Method 2
electrons from the cathode to ablate the source material from the anode to produce a stream of ablated particles
Implementation Method 3
application of the voltage causes multiple electrons from the cathode to ablate the source material or locally heat the anode
Implementation Method 4
locally heat the anode to cause source material to evaporate from the anode
Data Source
AI summary
Aspects of the present disclosure describe an atomic oven including a cathode, an anode that comprises a source material, and a power supply that provides a voltage between the cathode and the anode, wherein applying the voltage causes multiple electrons from the cathode to ablate the source material from the anode or locally heat the anode to cause source material to evaporate from the anode and, in both case, to produce a stream of ablated or evaporated particles that passes through an opening in the cathode.