Logic gates at the surface code threshold: Superconducting qubits poised for fault-tolerant quantum computing · HackerPapers discussions

Logic gates at the surface code threshold: Superconducting qubits poised for fault-tolerant quantum computing — mentioned by Strilanc

Thu, 06 Sep 2018 15:14:16 GMT

> The [two qubit] gates are about as reliable as any others you will find in the quantum computing world, which is to say that operations complete successfully around 93 percent of the time. For comparison, ion-based quantum computers are at 95 to 99 percent and superconducting quantum computers are around 90 to 95 percent. [...] Those comparison numbers are incorrect. Ion-based and superconducting-based groups have reported two-qubit gate fidelities of 99.9% [1] and 99.4% [2] respectively. [1]: https://arxiv.org/abs/1512.04600 [2]: https://arxiv.org/abs/1402.4848

Paper and discussion history. A mention is not an endorsement.

Logic gates at the surface code threshold: Superconducting qubits poised for fault-tolerant quantum computing — mentioned by greeneggs

Sun, 25 Feb 2018 16:01:07 GMT

It depends on the implementation. Ion traps are slower than superconducting qubits, for example, although they are speeding up. This paper, from 2014, gives some parameters: "Logic gates at the surface code threshold: Superconducting qubits poised for fault-tolerant quantum computing" Campbell et al. Nature, 2014 https://arxiv.org/abs/1402.4848 From page 9: Initialization ~50ns Measurement ~200ns One-qubit gates ~20ns Two-qubit gates ~40ns

Paper and discussion history. A mention is not an endorsement.

Logic gates at the surface code threshold: Superconducting qubits poised for fault-tolerant quantum computing — mentioned by svedlin

Mon, 28 Apr 2014 11:43:19 GMT

Paper: http://www.nature.com/nature/journal/v508/n7497/full/nature1... http://arxiv.org/abs/1402.4848

Paper and discussion history. A mention is not an endorsement.

Logic gates at the surface code threshold: Superconducting qubits poised for fault-tolerant quantum computing — HN submission

Tue, 25 Feb 2014 01:50:05 GMT

Superconducting qubits poised for fault-tolerant quantum computing

1 point; 0 discussion replies on HN. Paper and source history. A submission is not an endorsement.