Quantum Decoherence Calculator
Calculate quantum decoherence time, coherence decay, purity, and fidelity degradation for quantum systems.
Inputs
s
Hz
K
Results
Decoherence Time
0 s
Coherence Decay
0.3679
Purity
0.3679
Fidelity
0.3679
Quality Factor1,000
Thermal Decoherence Time0 s
How to Use This Calculator
- Enter Coherence Time (s) β the Tβ time of the qubit; superconducting qubits are typically ~10β100 Β΅s, trapped ions ~seconds.
- Enter Decoherence Rate (Hz) β the inverse of the environment's correlation time.
- Set Temperature (K): millikelvin temperatures (0.01β0.1 K) are typical for superconducting quantum processors.
- Adjust Coupling Strength (0β1) to model weak (0.01) or strong (0.5) system-environment interaction.
- Read Decoherence Time (s), Purity (1 = pure state, 0.5 = maximally mixed), and Fidelity to assess qubit quality.
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Formula
Ο(t) = Ο(0) Γ e^(-t/Tβ)Related Calculators
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