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Showing 1 to 10 of 10 for “"Majorana zero modes"”.
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Examining mean-field approximations and Bogoliubov-de Gennes (BdG) equations for topological quantum computing - some considerations on the conceptual basis of Majorana zero modes in p+ip superconductors
The current theoretical framework for studying Majorana zero modes (MZM) in superconductors and its application for topological quantum computing is based on mean-field approximations and is derived from solutions to BdG equations. In this framework, particle number conservation is broken and …
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Majorana-based Topological Quantum Algorithms in Magnet-Superconductor Hybrid Structures
Majorana zero modes harbored by topological superconductors may be the key ingredient for the realization of fault-tolerant quantum computing and topologically protected quantum devices. Magnet-superconductor hybrid (MSH) systems have proven to be an experimentally versatile platform for quantum …
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Quantum Transport in Topological Phases of Matter
… starting by presenting a new method for creating Majorana zero modes using segmented Fermi surface. This approach, based on the Fermi surface of Bogoliubov quasiparticles allows for the reduction of the magnetic field required to induce a topological phase transition and reduces the number of …
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Aspects of highly-entangled quantum matter : from exotic phases, to quantum computation, and dynamics
… information processing in platforms hosting Majorana zero modes. We demonstrate that certain highly-entangled states may be engineered in arrays of mesoscopic topological superconducting islands, and used for fault-tolerant quantum computation. We then discuss measurement-based protocols for …
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Topological semimetals and nodal superconductors
… of gapless topological phases and the protected zero-energy states at the boundary. We study examples of gapless topological phases, focusing in particular on nodal superconductors, such as nodal noncentrosymmetric superconductors (NCSs). We compute the surface density of states of nodal NCSs and …
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Electronic transport and structure of a surface quantum well
… such as InAs is key to the realization of Majorana zero modes and future advances in topological computing. The surface accumulation layer that InAs forms when in contact with a superconductor makes it ideal for proximity effect-based devices, as the carriers are physically connected to the …
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Engineering superconductivity in ballistic semiconductor nanowires
… proposals to use 1D nanostructure to realize Majorana zero modes, quasiparticles that are relevant for topological quantum computing, many groups have attempted to engineer these modes in hybrid semiconductor-superconductor devices. While evidence for Majorana bound states in nanowires has …
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Imaging topological superconductivity in UTe_2
… unusual surface electronic states, such as zero-energy Andreev bound states, and helical or chiral topological surface states. The latter state being a prerequisite for non-Abelian fermion statistics and Majorana zero modes. Low-temperature spectroscopic-imaging scanning tunnelling …
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Precise magnetic control of the supercurrent and fluxoids in nanodevices: Memory effects and diode effects
… to s-wave superconductors, are predicted to host Majorana Zero Modes (MZMs), which can be used for topologically protected quantum computing, as introduced by Fu and Kane in 2008. These predictions have since attracted significant attention. Various platforms of single Josephson junctions on TIs …
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Inverse methods in quantum many-body physics
… loops and topological superconductors with Majorana zero modes (MZMs). These phases have exotic properties, such as long-ranged entanglement and anyonic quasiparticles, that make them interesting to study and potentially useful in emerging technologies such as quantum computing. Finally, we …