I Molecular Quantum Computer Progress

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Researchers have made significant advancements in molecular quantum computing by successfully trapping molecules to execute quantum operations. They achieved a two-qubit Bell state entanglement with 94 percent accuracy through precise control of molecular rotation. The experiment utilized the iSWAP gate to swap qubit states and apply a phase shift, crucial for establishing entanglement. While these developments mark progress in the field, some view them as preliminary steps toward more complex quantum systems. Overall, the findings indicate a promising direction for future molecular quantum computing research.
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Trapping molecules to perform quantum operations.
https://arxiv.org/abs/2406.15345

Trapping molecules to perform quantum operations. By carefully controlling how the molecules rotated with respect to one another, the team managed to entangle two molecules, creating a quantum state known as a two-qubit Bell state with 94 percent accuracy. The iSWAP gate used in this experiment swapped the states of two qubits and applied what is called a phase shift, an essential step in generating entanglement where the states of two qubits become correlated regardless of the distance in between.
 
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So progress. For the uninitiated like me it does sound like baby steps though.
 
We often see discussions about what QM and QFT mean, but hardly anything on just how fundamental they are to much of physics. To rectify that, see the following; https://www.cambridge.org/engage/api-gateway/coe/assets/orp/resource/item/66a6a6005101a2ffa86cdd48/original/a-derivation-of-maxwell-s-equations-from-first-principles.pdf 'Somewhat magically, if one then applies local gauge invariance to the Dirac Lagrangian, a field appears, and from this field it is possible to derive Maxwell’s...