量子模拟器中的非平衡临界缩放和普遍性
Arinjoy De1,2, Patrick Cook3,4, Mostafa Ali3
1Joint Quantum Institute and Joint Center for Quantum Information and Computer Science, NIST and University of Maryland, College Park, MD, USA. arinjoy@umd.edu.
Nature communications
|August 26, 2025
概括
研究人员使用被困离子量子模拟器探索非平衡关键现象. 他们发现了量子系统在灭后的独特的宇宙缩放规律和关键指数,揭示了新的非平衡行为.
科学领域:
- 量子模拟
- 凝聚物质物理
- 关键的现象
背景情况:
- 普遍性和缩放规律是平衡阶段过渡的关键.
- 在非平衡系统中理解这些概念仍然是一个重大挑战.
- 动态阶段显示进步,但非平衡的普遍性类是不太了解的.
研究的目的:
- 在量子火后调查非平衡的关键波动.
- 在远程伊辛模型中测量旋转波动的规律.
- 使用量子模拟器探索超越平衡的宇宙缩放.
主要方法:
- 使用一个被困的离子量子模拟器,
- 执行了远程Ising模型的临界点的量子火.
- 分析了多达50次旋转的系统以观察缩放行为.
主要成果:
- 根据火协议观察到波动幅度和时间尺度的独特普遍临界指数.
- 证明通用火可以导致热临界行为.
- 在双灭协议下确定了一个新的普遍非平衡行为.
结论:
- 捕获的离子量子模拟器可以探索超出平衡的宇宙缩放.
- 双重灭显示出新的非平衡关键现象.
- 结果提供了平衡和非平衡关键动态之间的基本差异.
更多相关视频
相关概念视频
The Pauli Exclusion Principle
49.9K
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:
49.9K
Equilibrium Conditions for a Particle
1.4K
When an object is in equilibrium, it is either at rest or moving with a constant velocity. There are two types of equilibrium: static and dynamic. Static equilibrium occurs when an object is at rest, while dynamic equilibrium occurs when an object is moving with a constant velocity. In both cases, there must be a balance of forces acting on the object.
To understand the concept of equilibrium, let us first consider the forces acting on an object. When different forces act on an object, they can...
To understand the concept of equilibrium, let us first consider the forces acting on an object. When different forces act on an object, they can...
1.4K
Modeling and Similitude
329
Scaled modeling is a fundamental technique in engineering, enabling the study of large and complex systems by creating smaller, manageable replicas that recreate critical characteristics of the original. In hydrology and civil infrastructure, for example, scaled models of dams help analyze water flow, turbulence, and pressure. This method allows for accurate predictions of real-world behavior within a controlled environment, significantly reducing the cost and time involved in full-scale...
329
The de Broglie Wavelength
26.4K
In the macroscopic world, objects that are large enough to be seen by the naked eye follow the rules of classical physics. A billiard ball moving on a table will behave like a particle; it will continue traveling in a straight line unless it collides with another ball, or it is acted on by some other force, such as friction. The ball has a well-defined position and velocity or well-defined momentum, p = mv, which is defined by mass m and velocity v at any given moment. This is the typical...
26.4K
The Quantum-Mechanical Model of an Atom
44.3K
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.
44.3K
Fermi Level Dynamics
341
The vacuum level denotes the energy threshold required for an electron to escape from a material surface. It is usually positioned above the conduction band of a semiconductor and acts as a benchmark for comparing electron energies within various materials.
Electron affinity in semiconductors refers to the energy gap between the minimum of its conduction band and the vacuum level and it is a critical parameter in determining how easily a semiconductor can accept additional electrons.
The work...
Electron affinity in semiconductors refers to the energy gap between the minimum of its conduction band and the vacuum level and it is a critical parameter in determining how easily a semiconductor can accept additional electrons.
The work...
341


