# Design and application of high-speed and high-precision CV gate on IBM Q OpenPulse system

@inproceedings{Oomura2021DesignAA, title={Design and application of high-speed and high-precision CV gate on IBM Q OpenPulse system}, author={Shun Oomura and Takahiko Satoh and Michihiko Sugawara and Naoki Yamamoto}, year={2021} }

Faster and more precise physical processing of quantum gate, by suitably designing a pulse sequence to implement the target gate, will greatly improve the performance of quantum algorithms in the presence of noise. In this paper, we demonstrate that, by employing OpenPulse design kit for IBM Q devices, the controlled-V gate (CV gate) can be implemented in about 34.5% shorter gate time, with 0.66% improvement in the average gate fidelity, compared to the standard version provided there. Then… Expand

#### Figures and Tables from this paper

#### 2 Citations

Dynamical uncertainty propagation with noisy quantum parameters

- Physics
- 2021

Many quantum technologies rely on high-precision dynamics, which raises the question of how these are influenced by the experimental uncertainties that are always present in real-life settings. A… Expand

Pulse-efficient circuit transpilation for quantum applications on cross-resonance-based hardware

- Physics
- Physical Review Research
- 2021

We show a pulse-efficient circuit transpilation framework for noisy quantum hardware. This is achieved by scaling cross-resonance pulses and exposing each pulse as a gate to remove redundant… Expand

#### References

SHOWING 1-10 OF 32 REFERENCES

Optimized cross-resonance gate for coupled transmon systems

- Physics
- 2018

The cross-resonant gate is an entangling gate for fixed frequency superconducting qubits introduced for untunable qubits. While being simple and extensible, it suffers from long duration and limited… Expand

Procedure for systematically tuning up cross-talk in the cross-resonance gate

- Physics
- 2016

We present improvements in both theoretical understanding and experimental implementation of the cross resonance (CR) gate that have led to shorter two-qubit gate times and interleaved randomized… Expand

Elementary gates for quantum computation.

- Physics, Medicine
- Physical review. A, Atomic, molecular, and optical physics
- 1995

U(2) gates are derived, which derive upper and lower bounds on the exact number of elementary gates required to build up a variety of two- and three-bit quantum gates, the asymptotic number required for n-bit Deutsch-Toffoli gates, and make some observations about the number of unitary operations on arbitrarily many bits. Expand

Quantum Computing in the NISQ era and beyond

- Computer Science, Physics
- Quantum
- 2018

Noisy Intermediate-Scale Quantum (NISQ) technology will be available in the near future, and the 100-qubit quantum computer will not change the world right away - but it should be regarded as a significant step toward the more powerful quantum technologies of the future. Expand

Optimal quantum circuit synthesis from controlled-unitary gates (6 pages)

- Physics
- 2004

Using a geometric approach, we derive the minimum number of applications needed for an arbitrary controlled-unitary gate to construct a universal quantum circuit. An analytic construction procedure… Expand

Compiling SU(4) quantum circuits to IBM QX architectures

- Computer Science, Physics
- ASP-DAC
- 2019

This work analyzes the bottlenecks of existing compilers and provides a dedicated method for compiling this kind of circuits to IBM QX architectures and shows that the proposed approach significantly outperforms IBM's own solution regarding fidelity of the compiled circuit as well as runtime. Expand

Fully microwave-tunable universal gates in superconducting qubits with linear couplings and fixed transition frequencies

- Physics
- 2010

A register of quantum bits with fixed transition frequencies and weakly coupled to one another through simple linear circuit elements is an experimentally minimal architecture for a small-scale… Expand

Characterizing errors on qubit operations via iterative randomized benchmarking

- Physics
- 2016

With improved gate calibrations reducing unitary errors, we achieve a benchmarked single-qubit gate fidelity of 99.95% with superconducting qubits in a circuit quantum electrodynamics system. We… Expand

Qiskit Backend Specifications for OpenQASM and OpenPulse Experiments

- Computer Science, Physics
- ArXiv
- 2018

A specification for a common interface to backends and a standarized data structure (Qobj --- quantum object) for sending experiments to those backends via Qiskit and OpenPulse, a language for specifying pulse level control of a general quantum device independent of the specific hardware implementation are provided. Expand

UNIVERSAL QUANTUM GATES

- 2008

For classical circuits, both {AND, NOT} and the single-gate set {NAND} are universal. To nd universal sets of quantum gates, we use the quantum circuit model, in which each gate is represented by a 2… Expand