Amazing stuff! Why is superconductivity at room temperature so elusive? Why do politicians spend/waste so much money on so called renewable energy (solar, wind) instead of on superconductivity at room temperature research!
"MIT physicists have observed signs of a rare type of superconductivity [spin triplet superconductivity] in a material called magic-angle twisted trilayer graphene. In a study appearing today in Nature, the researchers report that the material exhibits superconductivity at surprisingly high magnetic fields of up to 10 Tesla, which is three times higher than what the material is predicted to endure if it were a conventional superconductor. ...
“Regular quantum computing is super fragile,” ... " ... About 20 years ago, theorists proposed a type of topological superconductivity that, if realized in any material, could [enable] a quantum computer where states responsible for computation are very robust. ..."
“Regular quantum computing is super fragile,” ... " ... About 20 years ago, theorists proposed a type of topological superconductivity that, if realized in any material, could [enable] a quantum computer where states responsible for computation are very robust. ..."
" ... Most experimentally known superconductors have spin-singlet Cooper pairs; these include metals (such as lead and niobium) that demonstrate conventional superconductivity, and cuprates (layered copper oxide compounds) that exhibit unconventional superconductivity. Writing in Nature, Cao et al.1 report evidence for unconventional superconductivity associated with spin-triplet Cooper pairs.
Two-dimensional spin-triplet superconductors have attracted widespread attention because many of them are predicted to host exotic zero-energy excitations called Majorana zero modes. A well-studied example of such a superconductor is a 2D chiral p-wave superconductor2. This system breaks time-reversal symmetry (its physical properties would change if the direction of time were reversed), and Majorana zero modes are expected to exist in the cores of vortices (threads of magnetic flux) when a magnetic field is applied perpendicular to the system. Majorana zero modes are promising candidates for topological qubits — the building blocks of a type of ‘fault-tolerant’ quantum computation known as topological quantum computation3,4. Therefore, given that most known spin-triplet superconductors are 3D, experimentally established 2D spin-triplet superconductors are much desired. ..."
Two-dimensional spin-triplet superconductors have attracted widespread attention because many of them are predicted to host exotic zero-energy excitations called Majorana zero modes. A well-studied example of such a superconductor is a 2D chiral p-wave superconductor2. This system breaks time-reversal symmetry (its physical properties would change if the direction of time were reversed), and Majorana zero modes are expected to exist in the cores of vortices (threads of magnetic flux) when a magnetic field is applied perpendicular to the system. Majorana zero modes are promising candidates for topological qubits — the building blocks of a type of ‘fault-tolerant’ quantum computation known as topological quantum computation3,4. Therefore, given that most known spin-triplet superconductors are 3D, experimentally established 2D spin-triplet superconductors are much desired. ..."
Superconductivity in a graphene system survives a strong magnetic field (open access) A material system known as magic-angle twisted trilayer graphene exhibits superconductivity. The observation that this superconductivity persists under a strong magnetic field could lead to advances in quantum computation.
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