Realization of Superadiabatic Two-Qubit Gates Using Parametric Modulation in Superconducting Circuits

@article{Chu2020RealizationOS,
  title={Realization of Superadiabatic Two-Qubit Gates Using Parametric Modulation in Superconducting Circuits},
  author={Ji Chu and Danyu Li and Xiaopei Yang and Shuqing Song and Zhikun Han and Zhen Yang and Yuqian Dong and Wen Zheng and Zhimin Wang and Xiangmin Yu and Dong Lan and Xinsheng Tan and Yang Yu},
  journal={Physical review applied},
  year={2020},
  volume={13}
}
Fast robust two-qubit gate operation with low susceptibility to crosstalk are the key to scalable quantum information processing. Parametrically driven gate is inherently insensitive to crosstalk while superadiabatic control can speed up the gate without losing accuracy. We propose and experimentally implement superadiabatic two-qubit gates using parametric modulation on superconducting quantum circuits. Our results demonstrate the preservation of adiabaticity at a gate speed close to the… 

Figures from this paper

Nonadiabatic geometric quantum computation with optimal control on superconducting circuits
Quantum gates, which are the essential building blocks of quantum computers, are very fragile. Thus, to realize robust quantum gates with high fidelity is the ultimate goal of quantum manipulation.
Implementation of Conditional Phase Gates Based on Tunable ZZ Interactions.
TLDR
This work controls the ZZ-coupling rate over 3 orders of magnitude to perform a rapid (38 ns), high-contrast, low leakage, conditional phase CZ gate with a fidelity of 97.9±0.7% as measured in interleaved randomized benchmarking.
Realization of invariant-based shortcuts to population inversion with a superconducting circuit
Shortcuts to adiabaticity have been proved an effective routine for precise quantum state manipulation. Here, we experimentally demonstrate invariant-based shortcuts to adiabaticity to speed up the
Robust and Fast Holonomic Quantum Gates with Encoding on Superconducting Circuits
TLDR
This work proposes a simplified implementation of universal holonomic quantum gates on superconducting circuits with experimentally demonstrated techniques, which can remove the two main challenges by introducing the time-optimal control into the construction of quantum gates.
Rapid and unconditional parametric reset protocol for tunable superconducting qubits
TLDR
This work reports a fast and high-fidelity reset scheme that can achieve effective second excited state depletion, has negligible effects on neighboring qubits, and offers a way to entangle the qubit with an itinerant single photon, useful in quantum communication applications.
Coherent state transfer between superconducting qubits via stimulated Raman adiabatic passage
Coherent quantum state transfer is a vital step in quantum information processing. Based on the stimulated Raman adiabatic passage (STIRAP), we realize robust quantum state transfer between two
Path-optimized nonadiabatic geometric quantum computation on superconducting qubits
Quantum computation based on nonadiabatic geometric phases has attracted a broad range of interests, due to its fast manipulation and inherent noise resistance. However, it is limited to some special
Superconducting quantum computing: a review
TLDR
A brief review on the experimental efforts towards the large-scale superconducting quantum computer, including qubit design, quantum control, readout techniques, and the implementations of error correction and quantum algorithms is provided.
High‐Fidelity Geometric Quantum Gates with Short Paths on Superconducting Circuits
Geometric phases are robust against certain types of local noises, and thus provide a promising way toward high‐fidelity quantum gates. However, comparing with the dynamical ones, previous
Digital Quantum Simulation of Nonadiabatic Geometric Gates via Shortcuts to Adiabaticity
TLDR
A digital simulation of nonadiabatic geometric quantum gates in terms of shortcuts to adiabaticity (STA) can realize quantum error correction physically, leading to fault-tolerant quantum computing in the Noisy Intermediate-Scale Quantum (NISQ) era.
...
...

References

SHOWING 1-10 OF 77 REFERENCES
High-fidelity readout in circuit quantum electrodynamics using the Jaynes-Cummings nonlinearity.
TLDR
A qubit readout scheme that exploits the Jaynes-Cummings nonlinearity of a superconducting cavity coupled to transmon qubits is demonstrated and there is the unexpected onset of a high-transmission "bright" state at a critical power which depends sensitively on the initial qubit state.
Experimental Realization of a Fast Controlled- Z Gate via a Shortcut to Adiabaticity
For a frequency-tunable two-qubit system, a controlled-Z (CZ) gate can be realized by adiabatically driving the qubit system through an avoided level crossing between an auxiliary state and
Perfect quantum state transfer in a superconducting qubit chain with parametrically tunable couplings.
Faithfully transferring the quantum state is essential for quantum information processing. Here we demonstrate a fast (in 84 ns) and high-fidelity (99.2%) transfer of arbitrary quantum states in a
Fast Quantum Nondemolition Readout by Parametric Modulation of Longitudinal Qubit-Oscillator Interaction.
TLDR
This work shows how to realize fast and high-fidelity quantum nondemolition qubit readout using longitudinal qubit-oscillator interaction, and presents an implementation of this longitudinal parametric readout in circuit quantum electrodynamics and a possible multiqubit architecture.
Demonstration of universal parametric entangling gates on a multi-qubit lattice
TLDR
It is shown that parametric coupling techniques can be used to generate selective entangling interactions for multi-qubit processors and offer a path to a scalable architecture with high selectivity and low cross-talk.
Quantum logic gates for coupled superconducting phase qubits.
Based on a quantum analysis of two capacitively coupled current-biased Josephson junctions, we propose two fundamental two-qubit quantum logic gates. Each of these gates, when supplemented by
Analytical modeling of parametrically-modulated transmon qubits
Building a scalable quantum computer requires developing appropriate models to understand and verify its complex quantum dynamics. We focus on superconducting quantum processors based on transmons
Universal Gate for Fixed-Frequency Qubits via a Tunable Bus
The authors address a critical scalability issue in quantum computer design by activating a resonant exchange interaction. They achieve this by coupling two fixed-frequency superconducting qubits
Cavity quantum electrodynamics for superconducting electrical circuits: An architecture for quantum computation
We propose a realizable architecture using one-dimensional transmission line resonators to reach the strong-coupling limit of cavity quantum electrodynamics in superconducting electrical circuits.
A quantum engineer's guide to superconducting qubits
The aim of this review is to provide quantum engineers with an introductory guide to the central concepts and challenges in the rapidly accelerating field of superconducting quantum circuits. Over
...
...