[Verse 1] In quantum labs where qubits spin and dance Perfect states don't get a second chance Thermal noise creeps in from heated wires While magnetic fields mess with quantum choirs The environment's always listening in Making pure superposition wear thin [Chorus] Noise and decoherence, quantum's greatest foe T-one and T-two, the times we need to know Error correction codes, surface codes protect Three types of errors we must detect Bit flip, phase flip, and the combined effect Guard our quantum data, keep algorithms in check [Verse 2] T-one relaxation, energy decays Excited qubits fall in microsecond ways T-two dephasing kills coherent states Random phase kicks seal quantum fates Crosstalk between neighboring quantum gates Creates unwanted correlations that propagate [Chorus] Noise and decoherence, quantum's greatest foe T-one and T-two, the times we need to know Error correction codes, surface codes protect Three types of errors we must detect Bit flip, phase flip, and the combined effect Guard our quantum data, keep algorithms in check [Bridge] Logical qubits built from physical arrays Syndrome detection shows us error's ways Threshold theorem gives us hope to scale If error rates drop, quantum will prevail Dynamical decoupling, spin echo strong Keeps quantum memory alive for long [Verse 3] Mitigation strategies, we're fighting back Randomized compiling keeps errors on track Zero noise extrapolation, we predict What perfect qubits would have picked Error bars shrinking with each clever trick Making NISQ devices more than just a quick fix [Chorus] Noise and decoherence, quantum's greatest foe T-one and T-two, the times we need to know Error correction codes, surface codes protect Three types of errors we must detect Bit flip, phase flip, and the combined effect Guard our quantum data, keep algorithms in check [Outro] From Shor's nine qubit code to topological dreams Error correction's more complex than it seems But every quantum leap needs solid ground In error mitigation, our future's found
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