量子模拟中的实际量子优势
Andrew J Daley1, Immanuel Bloch2,3,4, Christian Kokail5,6
1Department of Physics and SUPA, University of Strathclyde, Glasgow, UK. andrew.daley@strath.ac.uk.
Nature
|July 27, 2022
概括
量子计算已经实现了
科学领域:
- 量子计算
- 量子模拟
- 材料科学
- 量子化学
- 高能物理
背景情况:
- 量子计算已经在人工问题上取得了"量子优势".
- 接下来是面对现实世界挑战的"实用量子优势".
- 量子模拟是一个关键的短期应用.
研究的目的:
- 为了概述量子模拟技术的现状.
- 讨论量子模拟的未来前景.
- 确定目前存在的实际量子优势.
主要方法:
- 目前量子计算技术和平台的概述.
- 对专用应用的模拟量子模拟器的分析.
- 对数字量子计算机和混合方法的讨论.
主要成果:
- 专用模拟量子模拟器已经可以实现实际的量子优势.
- 数字量子计算机提供更广泛的应用,但需要耐故障的硬件.
- 混合量子设备提供了短期的灵活性.
结论:
- 专用模拟量子模拟器提供了现有实用量子优势的途径.
- 对于数字量子计算机来说,进一步开发耐故障硬件至关重要.
- 混合方法对于近期量子应用至关重要.
相关概念视频
The Quantum-Mechanical Model of an Atom
43.1K
Shortly after de Broglie published his ideas that the electron in a hydrogen atom could be better thought of as being a circular standing wave instead of a particle moving in quantized circular orbits, Erwin Schrödinger extended de Broglie’s work by deriving what is now known as the Schrödinger equation. When Schrödinger applied his equation to hydrogen-like atoms, he was able to reproduce Bohr’s expression for the energy and, thus, the Rydberg formula governing hydrogen spectra.
43.1K
Ampere-Maxwell's Law: Problem-Solving
739
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...
739
The Pauli Exclusion Principle
48.5K
The arrangement of electrons in the orbitals of an atom is called its electron configuration. We describe an electron configuration with a symbol that contains three pieces of information:
48.5K
Ampere's Law: Problem-Solving
3.7K
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...
3.7K
Quantum Numbers
35.6K
It is said that the energy of an electron in an atom is quantized; that is, it can be equal only to certain specific values and can jump from one energy level to another but not transition smoothly or stay between these levels.
35.6K
The Uncertainty Principle
23.7K
Werner Heisenberg considered the limits of how accurately one can measure properties of an electron or other microscopic particles. He determined that there is a fundamental limit to how accurately one can measure both a particle’s position and its momentum simultaneously. The more accurate the measurement of the momentum of a particle is known, the less accurate the position at that time is known and vice versa. This is what is now called the Heisenberg uncertainty principle. He...
23.7K


