Fast Estimation of Physical Error Contributions of Quantum Gates

• URL: http://arxiv.org/abs/2305.08916v2
• Date: Thu, 6 Jul 2023 12:16:28 GMT
• Title: Fast Estimation of Physical Error Contributions of Quantum Gates
• Authors: Miha Papi\v{c}, Adrian Auer, In\'es de Vega
• Abstract summary: We consider the case of superconducting transmon architectures, where we focus on the diabatic implementation of the CZ gate with tunable couplers. We account for all relevant noise sources, including non-Markovian noise, electronics imperfections and the effect of tunable couplers to the error of the computation.
• Score: 0.0
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Large-scale quantum computation requires a fast assessment of the main sources of error in the implemented quantum gates. To this aim, we provide a learning based framework that allows to extract the contribution of each physical noise source to the infidelity of a series of gates with a small number of experimental measurements. To illustrate this method, we consider the case of superconducting transmon architectures, where we focus on the diabatic implementation of the CZ gate with tunable couplers. In this context, we account for all relevant noise sources, including non-Markovian noise, electronics imperfections and the effect of tunable couplers to the error of the computation.

Related papers

• Power Characterization of Noisy Quantum Kernels [52.47151453259434]
  We show that noise may make quantum kernel methods to only have poor prediction capability, even when the generalization error is small. We provide a crucial warning to employ noisy quantum kernel methods for quantum computation.
  arXiv  Detail & Related papers  (2024-01-31T01:02:16Z)
• Robust Quantum Gates against Correlated Noise in Integrated Quantum Chips [11.364693110852738]
  We report the experimental realization of robust quantum gates in superconducting quantum circuits. Our work provides a versatile toolbox for achieving noise-resilient complex quantum circuits.
  arXiv  Detail & Related papers  (2024-01-03T16:12:35Z)
• Enhancing Quantum Computation via Superposition of Quantum Gates [1.732837834702512]
  We present different protocols, which we denote as "superposed quantum error mitigation" We show that significant noise suppression can be achieved for most kinds of decoherence and standard experimental parameter regimes. We analyze our approach for gate-based, measurement-based and interferometric-based models.
  arXiv  Detail & Related papers  (2023-04-17T18:01:05Z)
• Virtual quantum error detection [0.17999333451993949]
  We propose a protocol called virtual quantum error detection (VQED) VQED virtually allows for evaluating computation results corresponding to post-selected quantum states obtained through quantum error detection. For some simple error models, the results obtained using VQED are robust against the noise that occurred during the operation of VQED.
  arXiv  Detail & Related papers  (2023-02-06T08:52:50Z)
• Geometric correspondence of noisy quantum dynamics and universal robust quantum gates [0.0]
  We introduce the concept of Quantum Error Evolution Diagrams (QEED) These QEEDs establish a dual correspondence between driven noisy quantum dynamics and geometric space curves. We present a framework for designing universal robust quantum gates to correct the errors induced by generic noises.
  arXiv  Detail & Related papers  (2022-10-26T07:21:02Z)
• Probabilistic error cancellation with sparse Pauli-Lindblad models on noisy quantum processors [0.7299729677753102]
  We present a protocol for learning and inverting a sparse noise model that is able to capture correlated noise and scales to large quantum devices. These advances allow us to demonstrate PEC on a superconducting quantum processor with crosstalk errors.
  arXiv  Detail & Related papers  (2022-01-24T18:40:43Z)
• Measuring NISQ Gate-Based Qubit Stability Using a 1+1 Field Theory and Cycle Benchmarking [50.8020641352841]
  We study coherent errors on a quantum hardware platform using a transverse field Ising model Hamiltonian as a sample user application. We identify inter-day and intra-day qubit calibration drift and the impacts of quantum circuit placement on groups of qubits in different physical locations on the processor. This paper also discusses how these measurements can provide a better understanding of these types of errors and how they may improve efforts to validate the accuracy of quantum computations.
  arXiv  Detail & Related papers  (2022-01-08T23:12:55Z)
• Analytical and experimental study of center line miscalibrations in M\o lmer-S\o rensen gates [51.93099889384597]
  We study a systematic perturbative expansion in miscalibrated parameters of the Molmer-Sorensen entangling gate. We compute the gate evolution operator which allows us to obtain relevant key properties. We verify the predictions from our model by benchmarking them against measurements in a trapped-ion quantum processor.
  arXiv  Detail & Related papers  (2021-12-10T10:56:16Z)
• Crosstalk Suppression for Fault-tolerant Quantum Error Correction with Trapped Ions [62.997667081978825]
  We present a study of crosstalk errors in a quantum-computing architecture based on a single string of ions confined by a radio-frequency trap, and manipulated by individually-addressed laser beams. This type of errors affects spectator qubits that, ideally, should remain unaltered during the application of single- and two-qubit quantum gates addressed at a different set of active qubits. We microscopically model crosstalk errors from first principles and present a detailed study showing the importance of using a coherent vs incoherent error modelling and, moreover, discuss strategies to actively suppress this crosstalk at the gate level.
  arXiv  Detail & Related papers  (2020-12-21T14:20:40Z)
• Efficient and robust certification of genuine multipartite entanglement in noisy quantum error correction circuits [58.720142291102135]
  We introduce a conditional witnessing technique to certify genuine multipartite entanglement (GME) We prove that the detection of entanglement in a linear number of bipartitions by a number of measurements scales linearly, suffices to certify GME. We apply our method to the noisy readout of stabilizer operators of the distance-three topological color code and its flag-based fault-tolerant version.
  arXiv  Detail & Related papers  (2020-10-06T18:00:07Z)
• Using Quantum Metrological Bounds in Quantum Error Correction: A Simple Proof of the Approximate Eastin-Knill Theorem [77.34726150561087]
  We present a proof of the approximate Eastin-Knill theorem, which connects the quality of a quantum error-correcting code with its ability to achieve a universal set of logical gates. Our derivation employs powerful bounds on the quantum Fisher information in generic quantum metrological protocols.
  arXiv  Detail & Related papers  (2020-04-24T17:58:10Z)

This list is automatically generated from the titles and abstracts of the papers in this site.

This site does not guarantee the quality of this site (including all information) and is not responsible for any consequences.