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Effective methods for decoupling superconducting qubits (SQs) from parasitic environmental noise sources are critical for increasing their lifetime and phase fidelity. While considerable progress has been made in this area, the microscopic origin of noise remains largely unknown. In this work, first principles density functional theory calculations are employed to identify the microscopic origins of magnetic noise sources in SQs on an α-Al_{2}O_{3} substrate. The results indicate that it is unlikely that the existence of intrinsic point defects and defect complexes in the substrate are responsible for low frequency noise in these systems. Rather, a comprehensive analysis of extrinsic defects shows that surface aluminum ions interacting with ambient molecules will form a bath of magnetic moments that can couple to the SQ paramagnetically. The microscopic origin of this magnetic noise source is discussed and strategies for ameliorating the effects of these magnetic defects are proposed.

– Maine Coon Central


With so many people questioning the Maine Coon’s mysterious origins, it’s not surprising that bizarre queries like, ‘Is a Maine Coon Part Raccoon?’ have been asked!

Let’s take a closer look at all the facts, to determine the answer.

Maine Coon cats are not part raccoon. Their heritage is considered very mysterious, however, scientists have now proven this more bizarre historical myth to be biologically impossible. It is more likely that Maine Coon cats are descendants of the Norwegian Forest Cats kept on Viking ships, to catch mice.

Are Maine Coon Cats Related To Raccoons?

Proteins are structured like folded chains. These chains are composed of small units of 20 possible amino acids, each labeled by a letter of the alphabet. A protein chain can be represented as a string of these alphabetic letters, very much like a string of music notes in alphabetical notation.

Protein chains can also fold into wavy and curved patterns with ups, downs, turns, and loops. Likewise, music consists of sound waves of higher and lower pitches, with changing tempos and repeating motifs.

Protein-to-music algorithms can thus map the structural and physiochemical features of a string of amino acids onto the musical features of a string of notes.