DNA Templated Superdye Aggregates for Quantum Logic Gates

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Solution Overview

Problem

Chromophores exhibit non-ideal characteristics for quantum computing, such as strong coupling with vibrational and environmental degrees of freedom leading to phase jitter and difficulty in arranging them in required configurations, limiting the efficiency of exciton transfer and delocalization in quantum circuits.

Innovation Solution

The use of DNA templates to create long polymer dye aggregates with non-conjugating bridges (superdyes) enables precise control over exciton delocalization and transfer, allowing for the construction of excitonic circuits and quantum logic gates that can operate at room temperature and in noisy environments.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If chromophores are closely spaced to enable exciton transfer, then exciton delocalization is improved, but phase jitter increases due to strong coupling with vibrational and environmental degrees of freedom

Engineering Contradiction:
Improveexciton transfer efficiencyVSAvoidphase stability
Core Design Contradiction:
ReliabilityVSStability of the object's composition

Solution Approach 1:

The patent introduces DNA templates as intermediary structures that precisely position chromophores at optimal distances and orientations. The DNA backbone acts as a stable scaffold that mediates between the chromophores and the environment, reducing phase jitter while maintaining efficient exciton transfer through controlled spacing.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The invention creates composite structures combining chromophores with DNA templates and protective coatings. This composite approach allows the system to benefit from both the exciton transfer properties of chromophores and the stability of the DNA matrix, reducing environmental coupling while maintaining functionality.

Inventive Principle:
Principle #40Composite materials

2Adaptability or versatility

If chromophores are arranged in required configurations for quantum circuits, then quantum logic gate functionality is improved, but manufacturing precision becomes more difficult

Engineering Contradiction:
Improvequantum circuit configurationVSAvoidchromophore positioning accuracy
Core Design Contradiction:
Adaptability or versatilityVSManufacturing precision

Solution Approach 1:

The DNA templates are pre-designed and synthesized with specific sequences that encode the desired chromophore configurations before the actual assembly process. This preliminary action of creating the structural blueprint enables precise positioning without requiring complex real-time alignment during manufacturing.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system utilizes self-assembly mechanisms where chromophores automatically position themselves on the DNA template through specific binding interactions. This self-service approach eliminates the need for complex external positioning equipment and achieves high precision through molecular recognition and templating effects.

Inventive Principle:
Principle #25Self-service

3Adaptability or versatility

If chromophores are used in noisy environments at room temperature, then operational versatility is improved, but phase errors increase

Engineering Contradiction:
Improveenvironmental toleranceVSAvoidquantum computation accuracy
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The patent implements protective measures in advance by enclosing chromophores within DNA templates and adding protective coatings before exposure to noisy environments. This beforehand cushioning creates a shielded microenvironment that reduces the impact of thermal fluctuations and environmental noise, maintaining quantum coherence at room temperature.

Inventive Principle:
Principle #11Beforehand cushioning (Prior cushioning)

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 enables the creation of compact, efficient excitonic circuits and quantum logic gates with fast switching times, facilitating room temperature quantum computing and optical information processing while minimizing phase errors and environmental interference.

Implementation Method 1

DNA templates of dyes into long polymer dye aggregates with non-conjugating bridges (superdyes) using monomer or aggregate sub-units

Methodology Applied
Scientific EffectDNA templating:

Implementation Method 2

When two molecules are very close to each other the energy of an excited chromophore can be transferred to a neighboring chromophore without energy loss... The packet of energy can be exchanged in a wave like manner back and forth between the two molecules

Methodology Applied
Scientific EffectExciton transfer:

Implementation Method 3

The energy packet, in this sense, acts like a quantum mechanical particle that can become delocalized or spread out over an aggregate of chromophores just like an electron can spread out its wave function over an entire molecule

Methodology Applied
Scientific EffectDelocalization:

Implementation Method 4

Exciton wires can be made by closely spacing chromophores together in a row... when chromophores are nanospaced apart, an exciton may transfer from one chromophore to another without the loss of energy

Methodology Applied
Scientific EffectAggregate formation:

Data Source

PatentUS20240327643A1DNA templating of dyes into long polymer dye aggregates (superdyes) using monomer or aggregate sub-units
Publication Date: 2024.10.03 BOISE STATE UNIVERSITY
  • US20240327643A1 patent drawing
  • US20240327643A1 patent drawing
  • US20240327643A1 patent drawing

AI summary

Chemical (e.g., click chemistry), enzymatic- or photo-induced polymerization or other polymerization approaches (e.g., thermally activated) of (1) single dyes (monomer) can be used to produce an extended dye network in which each successive dye is arranged in a head-to-tail arrangement (J-like packing arrangement) of their transition dipole moments or (2) dye aggregate sub-units to achieve polymer branching. Furthermore, various routing patterns are achieved by templating a linear series of dyes onto DNA oligomers of various configurations. Dye aggregate dye sub-unit junctions (e.g., triad, tetrad, pentad, hexad, etc.) are used to achieve polymer branching enable creating various circuit patterns and circuit elements (e.g., optical transistors, gates, etc.). Branched configurations can occur on any surface (e.g., DNA nanostructure, chips substrate, hydrogel, etc.) using DNA (or any similar specific [bio]chemistry).