Superconducting Logic Components With Thermal Switching Narrow Sections
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Solution Overview
Problem
Existing systems for implementing logical operations are inefficient and lack effective methods for transitioning superconducting components between superconducting and non-superconducting states.
Innovation Solution
A superconducting component with alternating narrow and wide portions, thermally coupled to heat sources that transition between states in response to heat, and a photon detector system using isolated heat sources to determine the number of non-superconducting components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional systems are used for implementing logical operations, then device complexity is maintained at standard levels, but efficiency and effectiveness of logical operations are insufficient
Solution Approach 1:
The superconducting component is divided into multiple alternating narrow and wide portions, where each narrow portion can be independently controlled by a corresponding heat source. This segmentation allows for parallel operation of multiple logical operations, improving overall efficiency while maintaining manageable complexity through modular design
Solution Approach 2:
Different portions of the superconducting component have different widths to create local variations in thermal and electrical properties. The narrow portions are more susceptible to heat-induced state transitions, while wide portions provide stability and current carrying capacity. This local differentiation enables efficient logical operations without requiring complex external control systems
2Ease of operation
If heat sources are electrically coupled to the superconductor, then electrical control is simplified, but electrical interference and noise are introduced
Solution Approach 1:
A resistive component is introduced as an intermediary between the heat sources and the superconducting component. This resistor provides the necessary thermal coupling to induce state transitions while electrically isolating the heat sources from the superconducting circuit, thereby preventing electrical interference and noise from affecting the sensitive superconducting operations
Solution Approach 2:
The system replaces direct electrical control with thermal control mechanisms. Instead of using electrical signals to control the superconducting state, heat sources are used to thermally induce transitions through the resistive component. This substitution eliminates electrical interference while maintaining control capability through thermal fields
3Productivity
If rapid state transitions are enabled in superconducting components, then productivity of logical operations is improved, but precision of state control may be compromised
Solution Approach 1:
The system incorporates feedback mechanisms where the state of superconducting components is continuously monitored and used to control the operation of heat sources. This feedback loop ensures that rapid state transitions are precisely controlled and detected, maintaining accuracy while enabling high-speed logical operations. The feedback ensures that transitions occur only when intended and allows for correction of any control errors
Solution Approach 2:
The heat sources are activated in periodic sequences rather than continuously, allowing for controlled rapid transitions while providing intervals for state stabilization and accurate detection. This periodic activation pattern enables high-speed operation without sacrificing measurement precision, as each transition cycle includes both the rapid change phase and the detection/verification phase
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
Enhances the efficiency and accuracy of logical operations by enabling rapid state transitions and accurate photon detection at cryogenic temperatures.
Implementation Method 1
a plurality of heat sources, each heat source thermally coupled to a corresponding narrow portion such that heat from the heat source is transmitted to the corresponding narrow portion
Implementation Method 2
the superconducting component is configured such that in response to the transmitted heat the corresponding narrow portion transitions from a superconducting state to a non-superconducting state
Implementation Method 3
plurality of heat sources comprises a plurality of photon detectors
Implementation Method 4
configured to selectively provide heat to the corresponding superconducting component in response to receiving light of at least a first intensity
Implementation Method 5
a current source coupled to the plurality of superconducting components and the resistive component, and configured to supply a first current, wherein the first current is adapted to bias the first circuit such that: (a) responsive to the first current, a respective superconducting component of the first circuit operates in a superconducting state
Implementation Method 6
an output component coupled to the first circuit and configured to determine a number of the plurality of superconducting components in the non-superconducting state based on an impedance of the first circuit
Data Source
AI summary
An example circuit includes a superconducting component having a plurality of narrow portions and a plurality of wide portions, wherein the plurality of narrow portions and the plurality of wide portions have curved edges and rounded corners. The example circuit also includes a plurality of photon detector components, each photon detector component coupled to a corresponding narrow portion of the plurality of narrow portions.