Methods and apparatus for estimating the fidelity of quantum hardware. In one aspect, a method includes accessing a set of quantum gates; sampling a subset of quantum gates from the set of quantum gates, wherein the subset of quantum gates defines a quantum circuit; applying the quantum ...
Fidelity plays an important role in quantum information processing, which provides a basic scale for comparing two quantum states. At present, one of the most commonly used fidelities is Uhlmann-Jozsa (U-J) fidelity. However, U-J fidelity needs to calcul
In this article, we demonstrate the transfer of trapped ions between two quantum computing modules at a transfer rate of 2424 s−1over a total distance of 684 μm, and with an infidelity associated with ion loss during transport of less than 7 × 10−8. Furthermore, we demons...
The maximal and minimal quantum fidelity and relative entropy between two unitary orbits are explicitly derived. The potential applications in quantum ... L Zhang,SM Fei - High Performance Computing & Communications, Third International Conference, Hpcc, Houston, Usa, September 被引量: 10发表: 2007...
Then, a method of computing entanglement fidelity and a relation between quantum fidelity and entanglement fidelity for infinite-dimensional systems are obtained. In addition, upper and lower bounds of the quantum fidelity, and their connection to the trace distance, are also provided. 展开 ...
The ability to perform entangling quantum operations with low error rates in a scalable fashion is a central element of useful quantum information processing1. Neutral-atom arrays have recently emerged as a promising quantum computing platform, featuring coherent control over hundreds of qubits2,3and ...
Researchers used Oak Ridge National Laboratory's Quantum Computing User Program (QCUP) to achieve major improvements in quantum fidelity, a potential step toward more accurate, reliable quantum networks and supercomputers.
Best Quantum Computing Stocks Taking the long view on quantum computing stocks is some investors' preferred strategy for now. Brian O'ConnellFeb. 7, 2025 7 Best Vanguard Funds to Buy and Hold These diversified Vanguard funds rank among the best options for long-term investors. Tony DongFeb....
High fidelity quantum information processing with trapped ions Quantum computing (QC) offers the ability to efficiently solve certain computational problems which are intractable classically. Recently, most of the requirements for QC have been demonstrated with ions, and the current focus in ion-tra.....
Minimizing and understanding errors is critical for quantum science, both in noisy intermediate scale quantum (NISQ) devices1 and for the quest towards fault-tolerant quantum computation2,3. Rydberg arrays have emerged as a prominent platform in this con