Microsoft is building topological qubits that store quantum information in the two ends of a superconducting nanowire. These qubits are less sensitive to noise at either end individually. Microsoft’s recent paper shows measurements and analysis that demonstrate this topological phase in devices that will form the basis of a qubit.

In quantum computing, a qubit (/ ˈ k juː b ɪ t /) or quantum bit is a basic unit of quantum information—the quantum version of the classic binary bit physically realized with a two-state device. A qubit is a two-state (or two-level) quantum-mechanical system, one of the

2025年3月5日 · Microsoft announced last month it had created a “topological qubit,” which the company says can power a quantum computer more reliably than previously developed quantum qubits and which they believe will speed development of ultrafast quantum computers capable of tackling the toughest computing challenges, far beyond the capability of even ...

2016年11月3日 · Here, we revisit the design and fabrication of the superconducting flux qubit, achieving a planar device with broad-frequency tunability, strong anharmonicity, high reproducibility and relaxation...

2023年11月1日 · We describe two simple qubit implementations with superconducting circuits and discuss procedures for detecting amplitude-damping errors, performing entangling gates, and extending T ϕ. Our results suggest that engineering efforts should focus on improving T ϕ and the quality of quantum coherent control, as they effectively become the ...

At the heart of a quantum computer lies the qubit, a piece of information that is analogous to a classical bit in a binary processor. A bit can be in one or two states: on or off. This binary form of switch forms the basis for every computer processor (and transistor).

2024年2月21日 · Here, we propose a method for compiling quantum circuits in the case, where qubits are embedded into qudits of experimentally relevant dimensionalities, $d=3,...,8$, for the trapped-ion platform.

2025年2月19日 · On Wednesday, Microsoft released an update on its efforts to build quantum computing hardware based on the physics of quasiparticles that have largely been the domain of theorists.

2022年3月14日 · It’s a key scientific breakthrough that demonstrates the elusive building blocks for a topological quantum bit, or qubit, which Microsoft has long pursued as the most promising path to developing a scalable quantum computer that will launch a new generation of as-yet-unimagined computing capabilities for Azure customers.

This article reviews a recent experiment that demonstrated a new hybrid type of tunable superconducting qubit consisting of a two-dimensional (2D) superconducting capacitively shunted flux qubit coupled to a 3D microwave cavity.