对于量子算法的弹性运行时间权衡关系
Luis Pedro García-Pintos1, Tom O'Leary1,2, Tanmoy Biswas1
1Theoretical Division (T4), Los Alamos National Laboratory, Los Alamos, NM 87545, United States of America.
Reports on progress in physics. Physical Society (Great Britain)
|January 21, 2025
概括
最小化量子算法操作可以增加由于噪声敏感性的错误. 研究人员开发了一个框架来评估算法弹性和识别耐噪音编译,揭示了操作和弹性之间的权衡.
科学领域:
- 量子计算是一种量子计算.
- 算法设计 算法设计
- 计算科学 计算科学
背景情况:
- 最小化操作是算法设计的标准方法,特别是在量子计算中.
- 量子系统中的噪声迅速降低了性能,使得门的实施具有挑战性.
研究的目的:
- 调查最小化操作对量子算法错误率的影响.
- 开发一个框架来表征量子算法对噪声的弹性.
- 为了确定最佳的算法编译以减轻噪声.
主要方法:
- 开发了一个框架来量化对各种扰乱噪音的算法弹性.
- 分析了操作数量与噪声灵敏度之间的关系.
- 在分析中包括连贯错误,脱相和脱极化噪声.
主要成果:
- 在量子算法中最小化操作可以矛盾地增加噪音灵敏度和错误.
- 证明了一些编辑器对特定噪音具有弹性,而不是其他编辑器.
- 在操作数量和噪声弹性之间建立了权衡关系.
结论:
- 最小化操作的直观方法可能对量子算法可靠性产生反作用.
- 开发的框架有助于选择能够更好地承受环境噪音的量子算法编译.
- 优化量子算法需要平衡操作数量与噪声弹性.
相关概念视频
Ampere-Maxwell's Law: Problem-Solving
530
A parallel-plate capacitor with capacitance C, whose plates have area A and separation distance d, is connected to a resistor R and a battery of voltage V. The current starts to flow at t = 0. What is the displacement current between the capacitor plates at time t? From the properties of the capacitor, what is the corresponding real current?
To solve the problem, we can use the equations from the analysis of an RC circuit and Maxwell's version of Ampère's law.
For the first part of...
To solve the problem, we can use the equations from the analysis of an RC circuit and Maxwell's version of Ampère's law.
For the first part of...
530
Entropy Change in Reversible Processes
2.5K
In the Carnot engine, which achieves the maximum efficiency between two reservoirs of fixed temperatures, the total change in entropy is zero. The observation can be generalized by considering any reversible cyclic process consisting of many Carnot cycles. Thus, it can be stated that the total entropy change of any ideal reversible cycle is zero.
The statement can be further generalized to prove that entropy is a state function. Take a cyclic process between any two points on a p-V diagram.
The statement can be further generalized to prove that entropy is a state function. Take a cyclic process between any two points on a p-V diagram.
2.5K
Propagation of Uncertainty from Random Error
633
An experiment often consists of more than a single step. In this case, measurements at each step give rise to uncertainty. Because the measurements occur in successive steps, the uncertainty in one step necessarily contributes to that in the subsequent step. As we perform statistical analysis on these types of experiments, we must learn to account for the propagation of uncertainty from one step to the next. The propagation of uncertainty depends on the type of arithmetic operation performed on...
633
Stability of Equilibrium Configuration
429
Understanding the stability of equilibrium configurations is a fundamental part of mechanical engineering. In any system, there are three distinct types of equilibrium: stable, neutral, and unstable.
A stable equilibrium occurs when a system tends to return to its original position when given a small displacement, and the potential energy is at its minimum. An example of a stable equilibrium is when a cantilever beam is fixed at one end and a weight is attached to the other end. If the weight...
A stable equilibrium occurs when a system tends to return to its original position when given a small displacement, and the potential energy is at its minimum. An example of a stable equilibrium is when a cantilever beam is fixed at one end and a weight is attached to the other end. If the weight...
429
Stability of Equilibrium Configuration: Problem Solving
573
The stability of equilibrium configurations is an important concept in physics, engineering, and other related fields. In simple terms, it refers to the tendency of an object or system to return to its equilibrium position after being disturbed. The stability of an equilibrium configuration can be analyzed by considering the potential energy function of the system and examining its behavior near the equilibrium point.
Problem-solving in the context of the stability of equilibrium configuration...
Problem-solving in the context of the stability of equilibrium configuration...
573
Ampere's Law: Problem-Solving
3.5K
Ampere's law states that for any closed looped path, the line integral of the magnetic field along the path equals the vacuum permeability times the current enclosed in the loop. If the fingers of the right hand curl along the direction of the integration path, the current in the direction of the thumb is considered positive. The current opposite to the thumb direction is considered negative.
Specific steps need to be considered while calculating the symmetric magnetic field distribution...
Specific steps need to be considered while calculating the symmetric magnetic field distribution...
3.5K


