Swap Test-based Characterization of Quantum Processes in Universal Quantum Computers
arXiv:2208.02893 · doi:10.1007/s11128-023-03961-y
Abstract
Quantum Computing has been presenting major developments in the last few years, unveiling systems with a increasing number of qubits. However, unreliable quantum processes in universal quantum computers still represent one of the the greatest challenges to be overcome. Such obstacle has its source on noisy operations and interactions with the environment which introduce decoherence to a quantum system. In this article we verify whether a tool called Swap Test is able to identify decoherence. Our experimental results demonstrate that the Swap Test can be employed as an alternative to a full Quantum Process Tomography, with the advantage of not destroying the qubit under test, under certain circumstances, as long as some modifications are introduced.
References in corpus (25)
- Quantum Computing in the NISQ era and beyond
- The Physical Implementation of Quantum Computation
- On the Measurement of Qubits
- Quantum fingerprinting
- Randomized Benchmarking of Quantum Gates
- Many-body quantum state tomography with neural networks
- Validating quantum computers using randomized model circuits
- Quantum state estimation
- Benchmarking an 11-qubit quantum computer
- Quantum certification and benchmarking
- Learning the quantum algorithm for state overlap
- Efficient learning of quantum noise
- The SWAP test and the Hong-Ou-Mandel effect are equivalent
- A general framework for randomized benchmarking
- Scalable reconstruction of density matrices
- Quantum Tomography Protocols with Positivity are Compressed Sensing Protocols
- Scalable randomized benchmarking of quantum computers using mirror circuits
- The controlled SWAP test for determining quantum entanglement
- Quantum Algorithm for Fidelity Estimation
- Experimental quantum pattern recognition in IBMQ and diamond NVs
- A Variational Approach to the Quantum Separability Problem
- Ancilla-free continuous-variable SWAP test
- Swap Test with Quantum-Dot Charge Qubits
- Scalable fast benchmarking for individual quantum gates with local twirling
- Complementarity Analysis of Interference between Frequency-Displaced Photonic Wave-Packets