Coherence
BeginnerCoherence is a qubit's ability to reliably maintain its quantum state, like superposition or entanglement, over time before being disrupted by environmental noise.
In Plain English
Imagine a perfectly spinning top. Coherence is the time it spins stably and predictably. As soon as it starts to wobble from a breeze or a bump (environmental noise), it loses its perfect state. This wobbling is like a qubit losing its coherence.
Why It Matters for Your Career
Quantum Hardware Engineers at companies like Rigetti, IBM Quantum, or IonQ are judged by their ability to increase qubit coherence times. During interviews, expect questions on how different qubit modalities address the fundamental challenge of maintaining coherence.
Related Terms
Jobs Requiring Coherence
Quantum hardware engineer
Qolab
Quantum Hardware Modeling - Research Scientist
International Business Machines Corporation · $170K - $230K
Lead Quantum Device Theorist
Rigetti Computing
Quantum Hardware Modeling Research Scientist
IBM · $90K - $130K
Quantum Scientist - R&D
QuEra Computing
Ready to apply your quantum knowledge?
Browse open positions that use concepts like this. New jobs added daily.