在量子伊辛模型中,工作的准概率分布
Gianluca Francica1, Luca Dell'Anna1
1Dipartimento di Fisica e Astronomia e Sezione INFN, Università di Padova, via Marzolo 8, 35131 Padova, Italy.
Physical review. E
|August 16, 2023
概括
我们在具有初始连贯性的多体系统中探索了量子工作统计. 局部灭揭示了量子上下文性,与全球灭不同,突出了连贯性作为一种资源.
科学领域:
- 量子多体物理学 量子多体物理学
- 统计力学 统计力学
- 量子信息理论 量子信息理论
背景情况:
- 在量子系统中理解工作统计的初始连贯性是不完整的.
- 在这样的系统中工作可以用准概率分布来描述.
研究的目的:
- 为了澄清参数火过程中所做的工作真正的量子特征.
- 为了研究工作准概率在一个Ising模型与横向场.
主要方法:
- 工作准概率分布的分析.
- 考虑全球和局部火.
- 专注于热力学极限.
主要成果:
- 全球火会产生对称的,非上下文的工作分布 (高斯式).
- 局部火表现出量子上下文性,由负的第四工作矩表示.
- 研究了量子相变的关键特征.
结论:
- 最初的量子连贯性在量子多体系统中充当资源.
- 区分全球和本地火动态对于理解诸如上下文性等量子特征至关重要.
相关概念视频
The Quantum-Mechanical Model of an Atom
42.5K
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.
42.5K
The Uncertainty Principle
23.5K
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...
23.5K
Poisson Probability Distribution
8.3K
A Poisson probability distribution is a discrete probability distribution. It gives the probability of a number of events occurring in a fixed interval of time or space if these events happen at a known average rate and independently of the time since the last event. For example, a book editor might be interested in the number of words spelled incorrectly in a particular book. It might be that, on average, there are five words spelled incorrectly in 100 pages. The interval is 100 pages.
The...
The...
8.3K
The Pauli Exclusion Principle
39.0K
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:
39.0K
Probability Distributions
7.3K
The probability of a random variable x is the likelihood of its occurrence. A probability distribution represents the probabilities of a random variable using a formula, graph, or table. There are two types of probability distribution– discrete probability distribution and continuous probability distribution.
A discrete probability distribution is a probability distribution of discrete random variables. It can be categorized into binomial probability distribution and Poisson...
A discrete probability distribution is a probability distribution of discrete random variables. It can be categorized into binomial probability distribution and Poisson...
7.3K
Binomial Probability Distribution
11.1K
A binomial distribution is a probability distribution for a procedure with a fixed number of trials, where each trial can have only two outcomes.
The outcomes of a binomial experiment fit a binomial probability distribution. A statistical experiment can be classified as a binomial experiment if the following conditions are met:
There are a fixed number of trials. Think of trials as repetitions of an experiment. The letter n denotes the number of trials.
There are only two possible outcomes,...
The outcomes of a binomial experiment fit a binomial probability distribution. A statistical experiment can be classified as a binomial experiment if the following conditions are met:
There are a fixed number of trials. Think of trials as repetitions of an experiment. The letter n denotes the number of trials.
There are only two possible outcomes,...
11.1K


