在具有独立来源的量子网络中进行随机性认证
Giorgio Minati1, Giovanni Rodari1, Emanuele Polino1,2
1Dipartimento di Fisica, Sapienza Università di Roma, P.le Aldo Moro 5, I-00185 Roma, Italy.
Science advances
|January 23, 2026
概括
这项研究证明了在具有多个纠源的量子网络中验证随机性,这对于安全的量子通信至关重要. 这种方法限制了窃听者.
科学领域:
- 量子信息科学 量子信息科学
- 量子通信安全性 量子通信安全性
- 量子网络是一个量子网络.
背景情况:
- 随机性认证对于量子通信安全至关重要.
- 传统协议使用单个纠源,限制网络复杂性.
- 扩展量子网络需要多源纠验证.
研究的目的:
- 在多源纠实验中开发一种随机性认证方法.
- 为了应对复杂量子网络配置的验证随机性的挑战.
- 在量子网络中提供窃听知识的界限.
主要方法:
- 在纠-远程传输实验中开发了一种用于随机性认证的理论模型.
- 利用标量扩展方法来处理非凸的相关性集.
- 分析了来自光子量子网络的实验数据以进行验证.
主要成果:
- 在双源纠网络中成功描述了可证实的随机性.
- 提供了窃听者对共享秘密信息的知识的有效限制.
- 使用实验光子量子网络数据验证了理论模型.
结论:
- 开发的方法可以在复杂的量子网络中进行随机性认证.
- 这项工作是迈向强大,大规模量子网络的关键一步.
- 这些发现提高了量子通信协议的安全性.
相关概念视频
Independent and Dependent Sources
2.6K
In electrical circuits, sources play a crucial role in providing power for the operation of the circuit. These sources can be broadly categorized into two types: independent and dependent.
Independent voltage or current sources supply a fixed amount of voltage or current, respectively, which is unaffected by other elements within the circuit. These are represented using specific symbols. Independent voltage sources are symbolized with polarities (+ and -), indicating the direction of the...
Independent voltage or current sources supply a fixed amount of voltage or current, respectively, which is unaffected by other elements within the circuit. These are represented using specific symbols. Independent voltage sources are symbolized with polarities (+ and -), indicating the direction of the...
2.6K
Quantum Numbers
49.5K
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.
49.5K
The Quantum-Mechanical Model of an Atom
56.8K
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.
56.8K
Introduction to Test of Independence
2.9K
In statistics, the term independence means that one can directly obtain the probability of any event involving both variables by multiplying their individual probabilities. Tests of independence are chi-square tests involving the use of a contingency table of observed (data) values.
The test statistic for a test of independence is similar to that of a goodness-of-fit test:
The test statistic for a test of independence is similar to that of a goodness-of-fit test:
2.9K
Hypothesis Test for Test of Independence
7.4K
The test of independence is a chi-square-based test used to determine whether two variables or factors are independent or dependent. This hypothesis test is used to examine the independence of the variables. One can construct two qualitative survey questions or experiments based on the variables in a contingency table. The goal is to see if the two variables are unrelated (independent) or related (dependent). The null and alternative hypotheses for this test are:
H0: The two variables (factors)...
H0: The two variables (factors)...
7.4K
Law of Independent Assortment
62.4K
While Mendel’s Law of Segregation states that the two alleles for one gene are separated into different gametes, a different question of how different genes are inherited remains. For example, is the gene for tall plants inherited with the gene for green peas? Mendel asked this question by experimenting with a dihybrid cross; a cross in which both parents are homozygous for two distinct traits resulting in an F1 generation that are heterozygous for both traits.
62.4K


