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Fluxonium qubit kept superposition 1,45 millisecond.


The fluxonium qubit made a record in superconducting-based quantum computing. Fluxonium is a superconducting artificial atom, made of Josephson's junctions. The problem with quantum computers is that it's hard to make fully controlled qubits by using atoms or other complex quantum systems. Things like oscillating protons can be suitable for making qubits and superpositions between two protons. 

The problem is that the energy level between those protons is hard to adjust because the superposition must create by connecting the energy fields. That surrounds those quarks. So the oscillation must make only to energy or quantum fields that surround the proton. 

The quarks must not stress by using that radiation. The problem with a proton is that its structure is very complicated. And the energy impact should not travel in the proton's internal structures. 

 "A Josephson junction is a quantum mechanical device which is made of two superconducting electrodes separated by a barrier (thin insulating tunnel barrier, normal metal, semiconductor, ferromagnet, etc.). A π Josephson junction is a Josephson junction in which the Josephson phase φ equals π in the ground state, i.e. when no external current or magnetic field is applied". (https://en.wikipedia.org/wiki/Pi_Josephson_junction). 



Image:) ScitechDaily.com/Electron Asymmetry and the Mystery of Matter’s Existence: A Record-Breaking Study


The image above is the artist's impression of the electron asymmetry around the proton in the hydrogen atom. If that position can turn stable this thing can use as the antenna that can superposition entire hydrogen atom or some part of it. Superposition in hydrogen atoms requires extreme accuracy in the energy effect. That energy should shake or oscillate only quantum fields that surround the entirety called hydrogen atom. The problem is that an electron's motion causes non-controlled effects in the quantum field. 

The fluxion qubit is the pathfinder in the complicated quantum system's superpositions. If the system can make superposition between natural atoms. That thing makes it possible to create new types of cheaper qubits. But the problem is that making things like fluxions require energy and making artificial atoms is expensive.  

One of the problems with connecting atoms is the electron shell. When those electrons are orbiting the atom that causes problems in quantum field symmetry. The system should lock those electrons in stable positions. Before it starts making a superposition between atoms. 

The best position of electron orbitals would be at the same level at the atom's equator. Another thing is that the radiation effect must lock those electrons in a static position so that the superposition between complicated structures can begin. 



https://arxiv.org/abs/2111.13504


https://physics.aps.org/articles/v12/131


https://scitechdaily.com/electron-asymmetry-and-the-mystery-of-matters-existence-a-record-breaking-study/?expand_article=1


https://www.sciencealert.com/fluxonium-qubit-retains-information-for-1-43-milliseconds-10x-longer-than-before


https://en.wiktionary.org/wiki/fluxonium


https://en.wikipedia.org/wiki/Pi_Josephson_junction

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