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Qudit Dynamical Decoupling on a Superconducting Quantum Processor

Journal Article · · Physical Review Letters
Multilevel qudit systems are increasingly being explored as alternatives to traditional qubit systems due to their denser information storage and processing potential. However, qudits are more susceptible to decoherence than qubits due to increased loss channels, noise sensitivity, and crosstalk. To address these challenges, we develop protocols for dynamical decoupling (DD) of qudit systems based on the Heisenberg-Weyl group. We implement and experimentally verify these DD protocols on a superconducting transmon processor that supports qudit operation based on qutrits (d = 3) and ququarts (d = 4). Specifically, we demonstrate single-qudit DD sequences to decouple qutrits and ququarts from system-bath-induced decoherence. Here we also introduce two-qudit DD sequences designed to suppress the detrimental cross-Kerr couplings between coupled qudits. This allows us to demonstrate a significant improvement in the fidelity of time-evolved qutrit Bell states. Our results highlight the utility of leveraging DD to enable scalable qudit-based quantum computing.
Research Organization:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
National Science Foundation (NSF); US Army Research Laboratory (USARL); USDOE Office of Science (SC), Advanced Scientific Computing Research (ASCR)
Grant/Contract Number:
AC02-05CH11231
OSTI ID:
2562811
Journal Information:
Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 5 Vol. 134; ISSN 0031-9007
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English

References (57)

Modified Carr-Purcell-Meiboom-Gill sequence for NMR fourier imaging applications journal October 1986
Symmetrizing evolutions journal July 1999
Suppressing environmental noise in quantum computation through pulse control journal October 1999
Implementation of a Toffoli gate with superconducting circuits journal December 2011
On-chip generation of high-dimensional entangled quantum states and their coherent control journal June 2017
A programmable qudit-based quantum processor journal March 2022
High-fidelity qutrit entangling gates for superconducting circuits journal December 2022
Native qudit entanglement in a trapped ion quantum processor journal April 2023
Experimental Greenberger–Horne–Zeilinger entanglement beyond qubits journal October 2018
A universal qudit quantum processor with trapped ions journal July 2022
Programmable Heisenberg interactions between Floquet qubits journal January 2024
Quantum systems with finite Hilbert space journal February 2004
High fidelity quantum memory via dynamical decoupling: theory and experiment journal July 2011
Hamiltonian quantum simulation with bounded-strength controls journal April 2014
Encoding a qubit into multilevel subspaces journal March 2006
Blueprint for a High-Performance Fluxonium Quantum Processor journal August 2022
Universal Qudit Gate Synthesis for Transmons journal August 2023
Modeling Low- and High-Frequency Noise in Transmon Qubits with Resource-Efficient Measurement journal February 2024
Deterministic Generation of Qudit Photonic Graph States from Quantum Emitters journal May 2024
Efficient Long-Range Entanglement Using Dynamic Circuits journal August 2024
Operation and intrinsic error budget of a two-qubit cross-resonance gate journal July 2019
Dynamical suppression of decoherence in two-state quantum systems journal October 1998
Using parity kicks for decoherence control journal June 1999
Multivalued logic gates for quantum computation journal October 2000
Quantum encodings in spin systems and harmonic oscillators journal May 2002
Dynamical decoupling using slow pulses: Efficient suppression of1/fnoise journal March 2004
Efficient decoupling schemes with bounded controls based on Eulerian orthogonal arrays journal June 2006
Performance of deterministic dynamical decoupling schemes: Concatenated and periodic pulse sequences journal June 2007
Charge-insensitive qubit design derived from the Cooper pair box journal October 2007
Rigorous bounds for optimal dynamical decoupling journal July 2010
Dynamical rephasing of ensembles of qudits journal August 2015
Quantum error-correcting code for ternary logic journal May 2018
Suppression of Crosstalk in Superconducting Qubits Using Dynamical Decoupling journal August 2022
Dynamical decoupling for superconducting qubits: A performance survey journal December 2023
Quasiparticle tunneling and 1/f charge noise in ultrastrongly coupled superconducting qubit and resonator journal December 2021
Robust Dynamical Decoupling for Quantum Computing and Quantum Memory journal June 2011
Enhanced Fault-Tolerant Quantum Computing in d -Level Systems journal December 2014
Demonstration of Fidelity Improvement Using Dynamical Decoupling with Superconducting Qubits journal November 2018
Photon-Mediated Spin-Exchange Dynamics of Spin-1 Atoms journal January 2019
Quantum Teleportation in High Dimensions journal August 2019
Quantum Crosstalk Robust Quantum Control journal November 2023
Dissipative Dynamics of Graph-State Stabilizers with Superconducting Qubits journal January 2024
Quantum Fourier Transform Using Dynamic Circuits journal October 2024
Dynamical Decoupling of Open Quantum Systems journal March 1999
Fault-Tolerant Quantum Dynamical Decoupling journal October 2005
Practical trapped-ion protocols for universal qudit-based quantum computing journal July 2020
Protecting operations on qudits from noise by continuous dynamical decoupling journal March 2021
Quantum Information Scrambling on a Superconducting Qutrit Processor journal April 2021
Quick Quantum Steering: Overcoming Loss and Noise with Qudits journal November 2022
Robust Hamiltonian Engineering for Interacting Qudit Systems journal July 2024
Magic-State Distillation in All Prime Dimensions Using Quantum Reed-Muller Codes journal December 2012
High-Coherence Fluxonium Qubit journal November 2019
Colloquium : Protecting quantum information against environmental noise journal October 2016
Suppressing Correlated Noise in Quantum Computers via Context-Aware Compiling conference June 2024
Equivalence of Decoupling Schemes and Orthogonal Arrays journal September 2006
Improved Bounded-Strength Decoupling Schemes for Local Hamiltonians journal May 2016
Qudits and High-Dimensional Quantum Computing journal November 2020

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