Particle Trap System Optical Splitting for Ion Addressing
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Solution Overview
Problem
Current ion trap systems for quantum computing face challenges in scalability and complexity due to the need for precise and independent manipulation of ions, which is difficult with conventional optical path designs that require strong focusing of manipulation light.
Innovation Solution
A particle trap system comprising a trapping module, an optical splitting module, and a relative delay module that splits and adjusts the delay of light beams to achieve precise overlapping and independent addressing of ions, simplifying the optical path design and improving precision.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If manipulation light is strongly focused using a lens with large numerical aperture, then addressing precision is improved, but device complexity and difficulty increase
Solution Approach 1:
The patent divides the manipulation light into multiple independent light beams (first light beam and second light beam) that can be controlled separately. Each beam can be independently adjusted in terms of arrival time and spatial position, allowing precise targeting of individual ions without requiring complex focusing optics. This segmentation of the light source resolves the contradiction by achieving high addressing precision through temporal and spatial separation rather than through strong focusing.
2Measurement precision
If manipulation light is strongly focused, then addressing precision is improved, but scalability deteriorates
Solution Approach 1:
The patent employs dynamic control of light beam parameters, specifically adjusting the arrival times of different light beams through variable delay amounts. This dynamic adjustment mechanism allows the system to adapt to different ion positions and configurations without requiring physical reconfiguration of complex optical paths. The temporal modulation of light beams provides a scalable approach that can accommodate varying numbers and positions of ions while maintaining precise addressing capability.
3Measurement precision
If manipulation light is strongly focused, then addressing precision is improved, but noise increases
Solution Approach 1:
The patent utilizes periodic temporal separation of light beams, where different light beams are transmitted at different times with controlled delay amounts. This periodic action in the time domain allows precise spatial targeting through temporal modulation rather than spatial focusing. By controlling the arrival times of light beams periodically, the system achieves high addressing precision while avoiding the noise associated with strong spatial focusing, as the light beams are delivered in a controlled temporal sequence that minimizes background noise.
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 solution enables high-precision independent addressing of ions, reduces noise in manipulation light, and enhances the scalability and precision of quantum computing by accurately controlling photon flight times and overlapping light beams.
Implementation Method 1
The first optical splitting module is configured to split a received light beam into a first light beam and a second light beam
Implementation Method 2
The first relative delay module is configured to adjust a delay amount for the first light beam and the second light beam to reach a first target particle, where an adjusted first light beam and an adjusted second light beam overlap at the first target particle
Implementation Method 3
The ions may be trapped in space in a specific structure by applying a specific electromagnetic field to the electrode structure and combining a coulomb action between the ions
Implementation Method 4
applying a specific electromagnetic field to the electrode structure and combining a coulomb action between the ions
Implementation Method 5
The trapped ions are addressed (that is, the trapped ions are aligned with manipulation light (or referred to as addressing light)), to implement quantum state manipulation of the ions
Data Source
AI summary
A particle trap system is provided, to resolve a problem of complex particle addressing in a conventional technology, and can be used in fields such as quantum computing. The particle trap system may include a trapping module, a first optical splitting module, and a first relative delay module. The trapping module is configured to trap at least two particles. The first optical splitting module is configured to split a received light beam into a first light beam and a second light beam. The first relative delay module is configured to adjust a delay amount for the first light beam and the second light beam to reach a first target particle, where an adjusted first light beam and an adjusted second light beam overlap at the first target particle, and the first target particle is at least one particle in the trapping module.