decoherence

简明释义

英[ˌdiːkəʊˈhɪərəns]美[ˌdiːkoʊˈhɪrəns]

n. 脱散

英英释义

单词用法

同义词

反义词

例句

1.One of the main difficulties of quantum computation is that decoherence destroys the information in a quantum computer memory cell.

量子计算机存储单元的相干脱散，破坏量子态中的信息，是量子计算机难以实现的主要原因之一。

2.In addition to the stability and accuracy of satellite orbital data triggered decoherence is one of the reasons.

另外卫星的轨道数据的稳定性和准确性也是引发退相干的原因之一。

3.We have studied the problem of decoherence of two-level atoms which are put in a thermal reservoir through an external controllable driving field.

研究了置于外部环境(热库)中的二能级原子在外加驱动场时原子的消相干问题。

4.This paper explains the programme of decoherence. And under the programme of decoherence, it also analyzes the locality in the classical world and causation without determinism in quantum mechanics.

阐释了退相干解释的纲领，并在退相干解释纲领下，分析了经典世界中的定域性和量子力学中的非充分决定论的因果关系。

5.We study a pair of two-level atoms reducible density rectangular array when atoms by dipole-dipole interaction are put in a thermal reservoir. Decoherence of atoms is analyzed.

两个两能级原子置于外部环境(热库)中，当计及原子偶极间的相互作用时，通过研究两个原子约化密度矩阵，分析原子状态消相干规律。

6.Decoherence is a universal essential problem in modern quantum information and quantum computation. It is significant and difficult to study this problem in modern physical field.

退相干是现代量子信息与量子计算中普遍存在的本质问题，对于研究它是当今物理界的一个重点和难点。

7.The two level atom′s decoherence is suppressed when the time evolution properties of an external driving field satisfy certain conditions.

当外加驱动场的演化规律满足一定的条件时，可使两能级原子的消相干被消除。

8.In quantum computing, decoherence refers to the loss of quantum coherence, which is essential for the functioning of quantum bits.

在量子计算中，去相干指的是量子相干的丧失，这对量子位的功能至关重要。

9.The phenomenon of decoherence can lead to errors in quantum algorithms.

这种去相干现象可能导致量子算法中的错误。

10.Scientists are researching ways to minimize decoherence in quantum systems.

科学家们正在研究减少量子系统中去相干的方法。

11.Environmental factors contribute significantly to decoherence in quantum states.

环境因素对量子态中的去相干有显著影响。

12.Understanding decoherence is crucial for developing stable quantum computers.

理解去相干对于开发稳定的量子计算机至关重要。

作文

In the realm of quantum mechanics, the concept of decoherence plays a crucial role in our understanding of how quantum systems interact with their environments. Decoherence refers to the process by which a quantum system loses its quantum behavior and transitions into classical behavior due to interactions with the surrounding environment. This phenomenon is essential for explaining why we do not observe superpositions of states in our everyday lives, despite the fact that quantum mechanics allows for such possibilities. To illustrate this concept, consider a simple example of a quantum particle that can exist in two states simultaneously, such as being both here and there at the same time. In an isolated system, this particle can maintain its superposition. However, once it interacts with the environment—such as air molecules, photons, or even gravitational fields—the coherence of its quantum state begins to diminish. This interaction causes the particle to 'choose' a definite state, leading to what we observe as a classical outcome. Thus, decoherence effectively explains why we do not see macroscopic objects in superpositions, as they are constantly interacting with their environment. The implications of decoherence extend beyond theoretical physics; they also have significant consequences for quantum computing and quantum information theory. Quantum computers rely on maintaining quantum coherence to perform calculations more efficiently than classical computers. However, when qubits—the basic units of quantum information—experience decoherence, their ability to perform complex calculations diminishes. Researchers are actively exploring ways to mitigate decoherence through techniques such as error correction and creating more stable qubits, which could lead to practical and powerful quantum computers in the future. Moreover, decoherence has philosophical implications as well. It challenges our understanding of reality and observation. The transition from quantum to classical behavior raises questions about the nature of measurement and the role of the observer. If decoherence is responsible for the apparent collapse of the wave function, then what does that mean for our perception of reality? These questions continue to intrigue scientists and philosophers alike, as they delve deeper into the mysteries of the quantum world. In conclusion, decoherence is a fundamental concept in quantum mechanics that explains the transition from quantum to classical behavior through environmental interactions. Its significance is not only confined to theoretical physics but also extends to practical applications in quantum computing and raises profound philosophical questions about the nature of reality. Understanding decoherence is essential for anyone interested in the intricacies of quantum mechanics and its implications for our understanding of the universe. As we continue to explore the quantum realm, the study of decoherence will undoubtedly play a pivotal role in shaping our future discoveries and technologies.

在量子力学的领域中，去相干的概念在我们理解量子系统如何与其环境相互作用方面发挥着至关重要的作用。去相干指的是一个量子系统由于与周围环境的相互作用而失去其量子行为并过渡到经典行为的过程。这一现象对于解释为什么我们在日常生活中不观察到状态的叠加是至关重要的，尽管量子力学允许这种可能性。 为了说明这个概念，考虑一个简单的例子：一个量子粒子可以同时存在于两种状态中，比如同时在这里和那里。在一个孤立的系统中，这个粒子可以保持其叠加态。然而，一旦它与环境相互作用——例如空气分子、光子甚至引力场——其量子态的相干性就开始减弱。这种相互作用使粒子“选择”一个确定的状态，导致我们观察到的经典结果。因此，去相干有效地解释了为什么我们不看到宏观物体处于叠加态，因为它们不断地与环境相互作用。 去相干的影响不仅限于理论物理；它们对量子计算和量子信息理论也有重要的影响。量子计算机依赖于维持量子相干性，以比经典计算机更高效地执行计算。然而，当量子比特——量子信息的基本单位——经历去相干时，它们进行复杂计算的能力就会减弱。研究人员正在积极探索通过错误纠正和创建更稳定的量子比特等技术来减轻去相干的方法，这可能会导致未来实用且强大的量子计算机。 此外，去相干还具有哲学意义。它挑战了我们对现实和观察的理解。从量子行为到经典行为的转变引发了关于测量和观察者角色的问题。如果去相干是波函数看似崩溃的原因，那么这对我们对现实的感知意味着什么？这些问题继续吸引科学家和哲学家的关注，他们深入探讨量子世界的奥秘。 总之，去相干是量子力学中的一个基本概念，它通过环境相互作用解释了量子行为向经典行为的转变。其重要性不仅局限于理论物理，还延伸到量子计算的实际应用，并提出了关于现实本质的深刻哲学问题。理解去相干对于任何对量子力学及其对我们宇宙理解的影响感兴趣的人来说都是至关重要的。随着我们继续探索量子领域，对去相干的研究无疑将在塑造我们未来的发现和技术中发挥关键作用。