使用离散时间量子步行双向多节点量子传输
N Ikken1, P Kumar2, A Slaoui3,4,5
1LPHE-Modeling and Simulation, Faculty of Sciences, Mohammed V University in Rabat, Rabat, Morocco.
Scientific reports
|December 29, 2025
概括
我们引入双向量子传输 (BQT),使两个用户之间能够同时传输量子信息. 这种新的技术结合了连贯状态和量子步行,在量子网络中实现高效,高可靠的通信.
科学领域:
- 量子信息科学 量子信息科学
- 量子通信网络 量子通信网络
- 量子计算是一种量子计算.
背景情况:
- 传统的量子远程传输是单向的,限制了同时进行信息交换.
- 现有的协议要求每个方向都有单独的传输.
- 可扩展和高效的双向量子通信对于先进的量子网络至关重要.
研究的目的:
- 开发一种用于双向量子传输 (BQT) 的新技术.
- 为了使两个用户在单一协议中同时传输量子状态.
- 在现实的量子网络场景中分析BQT的保真性和性能.
主要方法:
- 使用非直角连贯状态编码量子信息,转换为施罗丁格猫状态.
- 使用离散时间量子步行,在三部分量子系统上有四个不同的步骤.
- 使用密度矩阵重叠来推导传输忠实性的分析公式.
- 使用SeQUeNCe离散事件模拟器模拟具有现实的限制的大规模量子网络.
主要成果:
- 实现了同时,高保真度的双向量子状态转移.
- 在高容量,大规模网络设置中证明了BQT的有效性.
- 与单向协议相比,发现了更多的资源开销.
- 在各种网络条件下评估量子内存利用率,吞吐量和端到端忠实性.
结论:
- 拟议的混合框架为下一代量子通信提供了一个可扩展和分析简单的解决方案.
- BQT提供了具有强效的对称通信,特别是在苛刻的网络环境中.
- 这种方法将离散时间量子演变与用于增强量子网络的连续变量状态编码集成在一起.
相关概念视频
02:32The de Broglie Wavelength
32.8K
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...
32.8K
02:43Quantum Numbers
48.8K
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.
48.8K
02:45The Quantum-Mechanical Model of an Atom
56.4K
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.
56.4K
01:42Directionality of Nuclear Transport
4.4K
Ras-related nuclear protein or Ran is a small G protein that cycles between its GTP and GDP bound states. Ran specific regulators, a Ran GTPase Activating Protein or RanGAP present in the cytosol and a Ran guanine nucleotide exchange factor or RanGEF present inside the nucleus regulate GTP/GDP exchange. A high concentration of GTP inside the cells, in addition to this asymmetric distribution of Ran-specific regulators, leads to a higher RanGTP concentration inside the nucleus. This...
4.4K