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In physics, an open quantum system is a quantum-mechanical system that interacts with an external quantum system, which is known as the environment or a bath. In general, these interactions significantly change the dynamics of the system and result in quantum dissipation, such that the information … 展开
A complete description of a quantum system requires the inclusion of the environment. Completely describing the resulting combined system … 展开
In general, the time evolution of closed quantum systems is described by unitary operators acting on the system. For open systems, however, the interactions between the system and its environment make it so that the dynamics of the system cannot be accurately … 展开
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CC-BY-SA 许可证中的维基百科文本 Quantum mechanics - Wikipedia
The rules of quantum mechanics assert that the state space of a system is a Hilbert space and that observables of the system are Hermitian operators acting on vectors in that space – although they do not tell us which Hilbert space or which operators. These can be chosen appropriately in order to obtain a quantitative description of a quantum system, a necessary step in making physical predictions. An important guide for making these choices is the correspondence principle, a heu…
Wikipedia · CC-BY-SA 许可下的文字Two-state quantum system - Wikipedia
网页In quantum mechanics, a two-state system (also known as a two-level system) is a quantum system that can exist in any quantum superposition of two independent …
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Quantum mechanics | Definition, Development,
网页3 天之前 · Quantum mechanics, science dealing with the behavior of matter and light on the atomic and subatomic scale. It attempts to describe and account for the properties of molecules and atoms and their …
What is Quantum Computing? - NASA
网页2022年7月6日 · The key to quantum computing is quantum algorithms – special algorithms uniquely constructed to take advantage of quantum properties, like quantum …
Quantum Mechanics | Brilliant Math & Science Wiki
网页Quantum mechanics [QM] is a branch of physics which describes physical systems so that properties like the energy or angular momentum are discrete quantities that are multiples of a smallest unit or quantum. A …
Quantum-Systems – Wikipedia
网页Die Quantum-Systems GmbH ist ein deutscher Hersteller von zivilen und militärischen Überwachungsdrohnen. Das Unternehmen wurde 2015 gegründet und hat seinen Sitz in …
What Is Quantum Physics? - Caltech Science Exchange
网页Quantum physics is the study of matter and energy at the most fundamental level. It aims to uncover the properties and behaviors of the very building blocks of nature. While many quantum experiments examine very small …
[1104.5242] Open Quantum Systems. An Introduction - arXiv.org
网页2011年4月27日 · Our aim is to present a unified approach to the quantum evolution of open systems that incorporates the concepts and methods traditionally employed by different …
Introduction to quantum mechanics - Wikipedia
网页t. e. Quantum mechanics is the study of matter and its interactions with energy on the scale of atomic and subatomic particles. By contrast, classical physics explains matter and energy only on a scale familiar to human …
