Transferring arbitrary d-dimensional quantum states of a superconducting qudit in circuit QED

Abstract

A qudit ($d$-level quantum systems) has a large Hilbert space and thus can be used to achieve many quantum information and communication tasks. Here, we propose a method to transfer arbitrary $d$-dimensional quantum states (known or unknown) between two superconducting qudits coupled to a single cavity. The state transfer can be performed fast because of employing resonant interactions only. In addition, quantum states can be deterministically transferred without measurement. Numerical simulations show that high-fidelity transfer of quantum states between two superconducting transmon qudits ($d\le 5$) is feasible with current circuit QED technology. This proposal is quite general and can be applied to accomplish the same task with various superconducting qudits, quantum dots, or natural atoms coupled to a cavity or resonator.

arXiv comment8 pages, 3 figures

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Cited by in corpus (7)

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• Generation of high-fidelity quantum control methods for multi-level systems
• Quantum Simulations of SO(5) Many-Fermion Systems using Qudits
• Time-Spatial Mode Selective Quantum Frequency Converter
• Benchmarking Quantum State Transfer on Quantum Devices using Spatio-Temporal Steering
• Noise-specific beats in the higher-level Ramsey curves of a transmon qubit
• Exact solution of a family of staggered Heisenberg chains with conclusive pretty good quantum state transfer