Not too long ago, Google unveiled their most superior quantum chip, Willow, highlighting some ground-breaking outcomes that might result in related real-world purposes of quantum computing, going past only a instrument of curiosity and speculations for scientists and engineers.
In case you are on the lookout for hype concerning the multiverse and breaking the encryption of cryptos with quantum computing, this submit just isn’t the place.
Right here, I’ll supply a layman’s perspective of quantum coherence and quantum error correction and what makes Google’s Willow chip a possible ground-breaking discovery. A Few of the subjects from Google’s Nature paper¹ that I wish to focus on right here can be:
- Coherence and Decoherence; T1 time
- Pure and Combined States; Density Matrix
- Quantum Error Correction; Floor Code
Let’s start!
Coherence in Qubits:
Coherence in quite simple phrases might be described as the flexibility of a qubit to keep up its quantum state with out being disrupted by noise or interactions with its setting. Coherence is important for quantum computation as a result of quantum…