纠传输沿着再生的仓鼠轮状态图表的纠传输
Haiyue Kang1, John F Kam2, Gary J Mooney3
1School of Physics, The University of Melbourne, Parkville, VIC, 3010, Australia. haiyuek@student.unimelb.edu.au.
Scientific reports
|December 3, 2025
概括
研究人员开发了一种可重复使用的量子传输方法,使用"量子仓鼠轮"循环传输状态. 这种技术允许超出量子比特计数的远程传输深度,在多个周期中保持纠.
科学领域:
- 量子信息科学 量子信息科学
- 量子计算是一种量子计算.
- 量子纠是一种量子纠.
背景情况:
- 量子传输对于量子通信和计算至关重要.
- 量子处理器的缩放受到量子比特数量和连接性的限制.
- 高效的状态转移和纠的保存是关键的挑战.
研究的目的:
- 为周期量子传输提供一种高效且可重复使用的方法.
- 为了证明远程传输的深度超过物理量子比特的数量.
- 为了对量子处理器中的纠保存进行基准测试.
主要方法:
- 使用了一个20量子比特离子陷量子处理器,配置为"量子仓鼠轮".
- 实现了两个量子比特图形状态的循环传输.
- 应用了具有副产品操作员校正的动态电路.
- 使用纠负面性和忠实度评估传输质量.
主要成果:
- 在真实硬件上,在三个周期 (56个量子位) 后,实现了58%的纠保存.
- 在一个杂的模拟器上100次跳跃后,维持了45%的纠.
- 证明传输深度超过物理量子比特数.
结论:
- "量子仓鼠轮"的方法使循环传输成为可能,并扩展了有效的量子比特数量.
- 这种方法提供了一个策略,用于基准测试量子计算机中的纠保存.
- 这项工作是实现基于测量的量子计算的一步.
相关概念视频
Path Between Thermodynamics States
3.9K
Consider the two thermodynamic processes involving an ideal gas that are represented by paths AC and ABC in Figure 1:
3.9K
Woodward–Hoffmann Selection Rules and Microscopic Reversibility
3.8K
Electrocyclic reactions, cycloadditions, and sigmatropic rearrangements are concerted pericyclic reactions that proceed via a cyclic transition state. These reactions are stereospecific and regioselective. The stereochemistry of the products depends on the symmetry characteristics of the interacting orbitals and the reaction conditions. Accordingly, pericyclic reactions are classified as either symmetry-allowed or symmetry-forbidden. Woodward and Hoffmann presented the selection criteria for...
3.8K
Sequence Networks of Rotating Machines
469
A Y-connected synchronous generator, grounded through a neutral impedance, is designed to produce balanced internal phase voltages with only positive-sequence components. The generator's sequence networks include a source voltage that is exclusively in the positive-sequence network. The sequence components of line-to-ground voltages at the generator terminals illustrate this configuration.
Zero-sequence current induces a voltage drop across the generator's neutral impedance and other...
Zero-sequence current induces a voltage drop across the generator's neutral impedance and other...
469
Energy Diagrams - II
11.8K
Energy diagrams are important to understand the dynamics of a system. The topology of an energy diagram helps illustrate the equilibrium points of the system.
The point in the energy diagram at which the system’s potential energy is the lowest is known as the local minima. The system tends to stay in this position indefinitely unless acted upon by a net force. The slope of the potential energy diagram at the local minima is zero, indicating that zero net force is acting on the system. The...
The point in the energy diagram at which the system’s potential energy is the lowest is known as the local minima. The system tends to stay in this position indefinitely unless acted upon by a net force. The slope of the potential energy diagram at the local minima is zero, indicating that zero net force is acting on the system. The...
11.8K
State Space Representation
502
The frequency-domain technique, commonly used in analyzing and designing feedback control systems, is effective for linear, time-invariant systems. However, it falls short when dealing with nonlinear, time-varying, and multiple-input multiple-output systems. The time-domain or state-space approach addresses these limitations by utilizing state variables to construct simultaneous, first-order differential equations, known as state equations, for an nth-order system.
Consider an RLC circuit, a...
Consider an RLC circuit, a...
502
Bewley Lattice Diagram
1.4K
The Bewley lattice diagram, developed by L. V. Bewley, effectively organizes the reflections occurring during transmission-line transients. It visually represents how voltage waves propagate and reflect within a transmission line, making it easier to understand the complex interactions that occur.
1.4K


