量子波动在量子比特网格中驱动非单调的相关性
Alejandro Lopez-Bezanilla1, Andrew D King2, Cristiano Nisoli3
1Theoretical Division, Los Alamos National Laboratory, Los Alamos, 87545, NM, USA. alejandrolb@gmail.com.
Nature communications
|January 18, 2024
概括
低不确定性可以令人惊地促进受热和量子波动影响的磁系统的秩序. 对超导量子比特的实验揭示了受控的混乱和量子效应如何导致新的有序相.
科学领域:
- 量子计算是一种量子计算.
- 凝聚物质物理学 凝聚物质物理学
- 统计力学 统计力学
背景情况:
- 波动可以破坏系统中的秩序,增加.
- 由于波动,有障碍的磁系统可以表现出复杂的排序行为.
- 量子化器是可编程自旋系统的有效模拟器.
研究的目的:
- 调查控制不确定性如何影响热量和量子波动的系统中的排序.
- 用量子模拟来探索"顺序与混乱"现象.
- 为了证明在控制的量子系统中创建特定的有序相.
主要方法:
- 使用可编程超导量子比特作为量子化器平台.
- 在交互量子比特的三角格子上设计了实验.
- 精确控制的混乱,有效温度和量子波动.
主要成果:
- 证明了有序的铁磁和分层的异性质无序相的产生.
- 观察到低水平的不确定性有助于订单.
- 提供了量子波动通过增加和缺陷聚类降低系统能量的证据.
结论:
- 量子波动和受控的混乱可以导致新兴的秩序现象.
- 该研究提供了对量子器件缺陷和波动动态的洞察.
- 这些发现可能有助于降低量子信息处理的成本.
相关概念视频
Trends in Lattice Energy: Ion Size and Charge
23.9K
An ionic compound is stable because of the electrostatic attraction between its positive and negative ions. The lattice energy of a compound is a measure of the strength of this attraction. The lattice energy (ΔHlattice) of an ionic compound is defined as the energy required to separate one mole of the solid into its component gaseous ions. For the ionic solid sodium chloride, the lattice energy is the enthalpy change of the process:
23.9K
Atomic Nuclei: Nuclear Relaxation Processes
655
In the absence of an external magnetic field, nuclear spin states are degenerate and randomly oriented. When a magnetic field is applied, the spins begin to precess and orient themselves along (lower energy) or against (higher energy) the direction of the field. At equilibrium, a slight excess population of spins exists in the lower energy state. Because the direction of the magnetic field is fixed as the z-axis, the precessing magnetic moments are randomly oriented around the z-axis.
655
¹H NMR: Interpreting Distorted and Overlapping Signals
1.0K
Spin systems where the difference in chemical shifts of the coupled nuclei is greater than ten times J are called first-order spin systems. These nuclei are weakly coupled, and their chemical shifts and coupling constant can generally be estimated from the well-separated signals in the spectrum.
As Δν decreases and the signals move closer, the doublets appear increasingly distorted. The intensities of the inner lines increase at the cost of those of the outer lines as the signals are...
As Δν decreases and the signals move closer, the doublets appear increasingly distorted. The intensities of the inner lines increase at the cost of those of the outer lines as the signals are...
1.0K
The de Broglie Wavelength
25.9K
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...
25.9K
The Quantum-Mechanical Model of an Atom
42.3K
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.
42.3K
Fermi Level Dynamics
250
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...
250


