decoherence

/ ˌdiːkəʊˈhɪərəns /

noun

1. physics the process in which a system's behaviour changes from that which can be explained by quantum mechanics to that which can be explained by classical mechanics

Example Sentences

“Because qubits are in a superposition of zero and one, they are very prone to errors and they are very prone to what is called decoherence, which means there could be noise, thermal fluctuations or many things that can collapse the state of the qubits,” Molignini told Salon in a video call.

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Could this nuclear environment play a role in so-called quantum decoherence?

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"But there are significant challenges to overcome. With quantum computing, for instance, we are working on maintaining quantum coherence, which means keeping a quantum system intact; error correction, which means detecting and correcting errors caused by decoherence; and scalability, which means being able to increase the number of qubits in a quantum system to solve more complex problems."

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But as the name suggests, the device amplifies weak signals picked up from the qubits to conduct the readout, which causes unwanted noise and can lead to decoherence of the qubits if not protected by additional large components.

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Topological quantum computers further improve upon quantum computing by taking advantage of how electrical properties are organized to make the computers robust to decoherence, or the loss of information that happens when a quantum system is not perfectly isolated.

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