Realization of Universal Quantum Gates with Spin-Qudits in Colloidal Quantum Dots

Abstract

We exploit hyperfine interactions in a single Mn-ion confined in a quantum dot (QD) to create a qudit, i.e. a multi-level quantum-bit system, with well defined, addressable and robust set of spin states for the realization of universal quantum gates. We generate and probe an arbitrary superposition of states between selected hyperfine energy level pairs by using electron double resonance detected nuclear magnetic resonance (EDNMR). This enables the observation of Rabi oscillations and the experimental realization of NOT and SWAP universal quantum gates that are robust against decoherence. Our protocol for cyclical preparation, manipulation and read-out of logic gates offers opportunities for integration of qudits in scalable quantum circuit architectures beyond solid state electron spin qubits.

References in corpus (19)

• Quantum Computation with Quantum Dots
• Elementary gates for quantum computation
• Spins in few-electron quantum dots
• A Two Qubit Logic Gate in Silicon
• Quantum CNOT Gate for Spins in Silicon
• Molecular Spin Qudits for Quantum Algorithms
• A photon-photon quantum gate based on a single atom in an optical resonator
• Quantum Encodings in Spin Systems and Harmonic Oscillators
• Universal quantum gates for hybrid systems assisted by quantum dots inside double-sided optical microcavities
• Three addressable spin qubits in a molecular single-ion magnet
• Two-Electron Spin Correlations in Precision Placed Donors in Silicon
• Parallelism for Quantum Computation with Qudits
• Hyper-parallel Toffoli gate on three-photon system with two degrees of freedom assisted by single-sided optical microcavities
• Engineering inter-qubit exchange coupling between donor bound electrons in silicon
• Measuring the Quantum State of a Large Angular Momentum
• Decoherence window and electron-nuclear cross-relaxation in the molecular magnet V 15
• Generalized Ramsey Interferometry Explored with a Single Nuclear Spin Qudit
• Strain and Electric Field Control of Hyperfine Interactions for Donor Spin Qubits in Silicon
• Forbidden coherent transfer observed between two realizations of quasi-harmonic spin system

Cited by in corpus (6)

• Practical trapped-ion protocols for universal qudit-based quantum computing
• Nanomaterials for Quantum Information Science and Engineering
• Solving correlation clustering with QAOA and a Rydberg qudit system: a full-stack approach
• Quantum Optimal Control of Nuclear Spin Qudecimals in ${}^{87}\text{Sr}$
• Towards the continuum limit of a $(1+1)$d quantum link Schwinger model
• Magneto-optics of excitons interacting with magnetic ions in CdSe/CdMnS colloidal nanoplatelets