Erik Bakkers, professor of Advanced Nanomaterials and Devices, concentrates his research on a new nanomaterial and in this manner would like to definitively exhibit the teleporation of Majorana particles. This is an essential step in the development of the Majorana quantum computer. Bakkers will get an Advanced Grant of 2.5 million euros from the European Research Council (ERC) to complete this research.
The award to Erik Bakkers expands on his profoundly effective ERC Consolidator Grant of 2013 that helped fund his presentation in 2017 of an advanced quantum chip with nano-hashtags and subsequently in 2018 the since a long time ago expected zero-bias peak, which has the very same peak as was anticipated by the Majorana theory.
Bakkers: “These results are extremely important, but also showed us that the current combination of semiconductor (indium antimonide) and superconductor (aluminum) is not ideal for the next step in Majorana research.” The transition between these two materials isn’t sharp, on the grounds that the aluminum responds chemically with the indium antimonide. Moreover, high magnetic fields are required to achieve the required topological state, which is troublesome. The topology is proposed to ensure the Majorana particle with the goal that it is substantially more steady than other quantum states.
Robust Crystal Lattice
Bakkers hence wants to utilize the Advanced Grant to build up a new material combination: topological crystalline insulator nanowires of tin telluride coupled to the superconductor lead. This material happens naturally in a topological state, which is formed by the symmetry of the crystal lattice. Since the crystal lattice of this material is extremely straightforward, equivalent to that of kitchen salt, everything is significantly more robust. Lead is likewise a stronger superconductor than aluminum and this combination should make it simpler to discover and control Majorana conditions.
Bakkers starts the research, which he will do inside the as of late propelled Center for Quantum Materials and Technology Eindhoven (QT/e), by developing brilliant tinelluride nanowires. For this development procedure he additionally wants to utilize a development system that has never been utilized for these materials, to be specific a high-vacuum technique (Molecular Beam Epitaxy) to deliver amazingly pure material.
“The results from the earlier ERC study already gave strong indications of the presence of Majorana particles. But in order to really demonstrate their presence, two things have to be proven: teleportation and interdependence. Using this Advanced Grant I want to prove teleportation,” says Bakkers. This requires a snared pair of particles to show up on the two sides of the nanowire and these states must be connected.
Bakkers: “For example, if I change the electric field on one side, the particle on the other side must simultaneously show the same change.” Quantum teleportation forms the basis of the qubit, the building block of the Majorana quantum computer. “That application is on the distant horizon,” says Bakkers.