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Quantum mechanics. Quantum entanglement is the phenomenon of a group of particles being generated, interacting, or sharing spatial proximity in such a way that the quantum state of each particle of the group cannot be described independently of the state of the others, including when the particles are separated by a large distance.
Alain Aspect (French: ⓘ; born 15 June 1947 [3]) is a French physicist noted for his experimental work on quantum entanglement. [4] [5] [6] [7]Aspect was awarded the 2022 Nobel Prize in Physics, jointly with John Clauser and Anton Zeilinger, "for experiments with entangled photons, establishing the violation of Bell inequalities and pioneering quantum information science".
Quantum entanglement swapping is an essential idea in quantum networking. It involves using aspects of quantum mechanics to extend entanglement from one pair of particles to another, even if those new particles have never interacted before. This process is very important for building quantum communication networks, enabling quantum ...
Quantum entanglement can be defined only within the formalism of quantum mechanics, i.e., it is a model-dependent property. In contrast, nonlocality refers to the impossibility of a description of observed statistics in terms of a local hidden variable model, so it is independent of the physical model used to describe the experiment.
Quantum optics is a branch of atomic, molecular, and optical physics dealing with how individual quanta of light, known as photons, interact with atoms and molecules. It includes the study of the particle-like properties of photons. Photons have been used to test many of the counter-intuitive predictions of quantum mechanics, such as ...
Doctoral advisor. Anton Zeilinger. Pan Jianwei (Chinese: 潘建伟; pinyin: Pān Jiànwěi; born 11 March 1970) is a Chinese academic administrator and quantum physicist. He is a university administrator and professor of physics at the University of Science and Technology of China. Pan is known for his work in the field of quantum entanglement ...
The concurrence is an entanglement monotone (a way of measuring entanglement) defined for a mixed state of two qubits as: [1][2][3][4] in which are the eigenvalues, in decreasing order, of the Hermitian matrix. with. the spin-flipped state of and a Pauli spin matrix. The complex conjugation is taken in the eigenbasis of the Pauli matrix .
Quantum network. Quantum networks form an important element of quantum computing and quantum communication systems. Quantum networks facilitate the transmission of information in the form of quantum bits, also called qubits, between physically separated quantum processors. A quantum processor is a machine able to perform quantum circuits on a ...