The reliable engineering of quantum states, particularly those involving several particles, is central to the development of various quantum technologies, including quantum computers, sensors and communication systems. These collective quantum states include so-called Dicke and Greenberger-Horne-Zeilinger (GHZ) states, multipartite entangled states that can be leveraged to collect precise measurements, to correct errors made by quantum computers and to enable communication between remote devices leveraging quantum mechanical effects.



Summary

Quantum state engineering is crucial for advancing quantum technologies like computers, sensors, and communication systems. Specifically, Dicke and GHZ states, which are multipartite entangled states, hold significant promise. These states can be harnessed for ultra-precise measurements, error correction in quantum computations, and secure communication between distant devices by exploiting quantum mechanics. Their reliable creation and manipulation are therefore key to unlocking the full potential of quantum technologies.

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