Towards a fullerene-based quantum computer

Abstract

Molecular structures appear to be natural candidates for a quantum technology: individual atoms can support quantum superpositions for long periods, and such atoms can in principle be embedded in a permanent molecular scaffolding to form an array. This would be true nanotechnology, with dimensions of order of a nanometre. However, the challenges of realising such a vision are immense. One must identify a suitable elementary unit and demonstrate its merits for qubit storage and manipulation, including input / output. These units must then be formed into large arrays corresponding to an functional quantum architecture, including a mechanism for gate operations. Here we report our efforts, both experimental and theoretical, to create such a technology based on endohedral fullerenes or 'buckyballs'. We describe our successes with respect to these criteria, along with the obstacles we are currently facing and the questions that remain to be addressed.

20 pages, 13 figs, single column format

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Cited by in corpus (29)

• A quantum spin transducer based on nano electro-mechancial resonator arrays
• A review of Quantum Cellular Automata
• Diamond based single molecule magnetic resonance spectroscopy
• Environmental effects on electron spin relaxation in N@C60
• Efficient Dynamic Nuclear Polarization at High Magnetic Fields
• Vector magnetometry based on S=3/2 electronic spins
• Information Transferring Ability of the Different Phases of a finite XXZ Spin Chain
• Electron spin coherence in metallofullerenes: Y, Sc and La@C82
• Quantum information processing architecture with endohedral fullerenes in a carbon nanotube
• Coherent state transfer between an electron- and nuclear spin in 15N@C60
• Prospects for laser cooling of polyatomic molecules with increasing complexity
• Entanglement between static and flying qubits in a semiconducting carbon nanotube
• Nanoelectromechanical coupling in fullerene peapods probed via resonant electrical transport experiments
• Direct optical excitation of a fullerene-incarcerated metal ion
• Generation of macroscopic quantum-superposition states by linear coupling to a bath
• Depth-Optimal Quantum Circuit Placement for Arbitrary Topologies
• The antiferromagnetic $S=1/2$ Heisenberg model on the ${\text{C}}_{60}$ fullerene geometry
• Transport via coupled states in a C60 peapod quantum dot
• Hybrid quantum magnetic field sensor with an electron spin and a nuclear spin in diamond
• Dynamical screening of an endohedral atom
• Quantum control in spintronics
• Creating nuclear spin entanglement using an optical degree of freedom
• Spin detection at elevated temperatures using a driven double quantum dot
• Low-temperature environments for quantum computation and quantum simulation
• Formation of nanoribbons by carbon atoms confined in a single-walled carbon nanotube -- A molecular dynamics study
• Nanoscale X-ray investigation of magnetic metallofullerene peapods
• Noncoplanar and chiral spin states on the way towards Néel ordering in fullerene Heisenberg models
• Entanglement and transport anomalies in nanowires
• A Low Complexity Scheme for Entanglement Distributor Buses