Quantum Well Structure for Contact-less Atom Confinement
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Solution Overview
Problem
Current methods for trapping atoms, molecules, and ions rely on evanescent fields near electromagnetic waveguides or magnetic coils, limiting confinement to shallow potentials and making it difficult to maintain precise spatial control and addressability, especially for larger numbers of ions.
Innovation Solution
A device featuring a quantum well structure with conductive or insulating layers that captures free atoms, molecules, or ions in regular or irregular quantum cells, utilizing quantum wave states for contact-less confinement with sub-nm precision and strong binding energies, allowing for local control and long relaxation times.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If evanescent fields near electromagnetic waveguides or magnetic coils are used for trapping, then atoms and ions can be confined, but the confinement is limited to shallow potentials and precise spatial control becomes difficult
Solution Approach 1:
The patent replaces electromagnetic field-based trapping (evanescent fields from waveguides or magnetic coils) with a solid-state quantum well structure. The quantum well is formed by a support layer, conductive layer, and quantum well structure with quantum cells that create potential wells through quantum mechanical effects, eliminating the need for complex electromagnetic field generation while achieving deeper and more precise confinement
Solution Approach 2:
The patent changes the fundamental parameter of confinement from electromagnetic field depth to quantum well potential depth. By engineering the quantum well structure with specific materials and geometries, deeper potential wells are achieved compared to the shallow potentials of evanescent field trapping, enabling more stable confinement
2Quantity of substance
If larger numbers of ions are trapped in evanescent fields, then more ions are available for experiments, but addressability and spatial control of individual ions becomes challenging
Solution Approach 1:
The quantum well structure is divided into multiple discrete quantum cells that can be individually addressed. Each quantum cell acts as an independent trapping site within the larger quantum well, allowing precise spatial control and addressability of individual ions even when many ions are trapped simultaneously across multiple cells
Solution Approach 2:
The quantum cell structure serves as an intermediary between the bulk quantum well and individual ions. The quantum cells provide discrete, addressable locations that mediate between the collective trapping capacity and individual ion control, enabling both high ion numbers and precise addressability
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
Enables well-defined, contact-less interaction and unprecedented addressability with sub-nm precision, maintaining ions in a stable, low-interacting state within the quantum cells, facilitating precise spatial control and extended relaxation times for complex clusters.
Implementation Method 1
said free atoms or molecules or clusters or ions being held contactlessly in said quantum cells by the interaction of its quantum wave state with the specific hosting quantum wave state of the respective quantum cell and/or the specific hosting quantum wave state(s) of one or more adjacent quantum cells
Data Source
AI summary
Surface supported quantum wells with a confined surface state capture and stably confine neutral atoms and molecules in a nanometer precise environment. Depending on the physico-chemical conditions in the capturing process, the degree of occupancy, the temperature of the solid substrate, and/or the history of external stimuli like electromagnetic field pulses, these atoms, molecules or clusters assume unique configurations. The atoms or molecules are able to remain coupled to the quantum-well specific electronic state in the confinement and as such exhibit local and delocalized quantum entanglement. The capturing potential arises from the superposition of Pauli repulsion between the captured object and the quantum well-specific confined electronic state. This occurs within on-surface atomic or supramolecular assemblies or surface supported coordination or covalent networks.