A protocol is presented that grows large entangled multi-qubit states, including generalized GHZ states, from smaller entangled pairs via graph-basis-assisted measurements that truncate Hilbert space and concentrate entanglement.
Entanglement in Quantum Information Theory
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abstract
Quantum mechanics has many counter-intuitive consequences which contradict our intuition which is based on classical physics. Here we discuss a special aspect of quantum mechanics, namely the possibility of entanglement between two or more particles. We will establish the basic properties of entanglement using quantum state teleportation. These principles will then allow us to formulate quantitative measures of entanglement. Finally we will show that the same general principles can also be used to prove seemingly difficult questions regarding entanglement dynamics very easily. This will be used to motivate the hope that we can construct a thermodynamics of entanglement.
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quant-ph 1years
2024 1verdicts
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Scalable and deterministic Greenberger-Horne-Zeilinger state generation via graph states-assisted measurements
A protocol is presented that grows large entangled multi-qubit states, including generalized GHZ states, from smaller entangled pairs via graph-basis-assisted measurements that truncate Hilbert space and concentrate entanglement.