Quantum Computing Evolution: NISQ to Fault-Tolerant Timeline

NISQ Era

2019 - 2025

Noisy Intermediate-Scale Quantum devices with 50-1000 qubits, high error rates (0.1-1%), limited coherence times

Logical Qubit Era

2025 - 2030

First error-corrected logical qubits, improved error rates (0.001-0.01%), quantum error correction demonstrations

Fault-Tolerant Era

2030+

Universal fault-tolerant quantum computers, thousands of logical qubits, error rates below 10⁻⁶

BREAKTHROUGH

2019

Quantum Supremacy

Qubits: 53

Error Rate: 0.2%

Achievement: Google Sycamore

2021

127-Qubit Processor

Qubits: 127

Error Rate: 0.15%

QV: 128

2022

433-Qubit Osprey

Qubits: 433

Error Rate: 0.1%

Provider: IBM

1000+ QUBITS

2023

1,121-Qubit Condor

Qubits: 1,121

Error Rate: 0.08%

Gate Fidelity: 99.9%

2024

Error Mitigation

Qubits: 1,386

Error Rate: 0.05%

QV: 32,768

LOGICAL QUBITS

2025

First Logical Qubit

Physical: 4,000

Logical: 10

Error Rate: 0.01%

2026

100 Logical Qubits

Physical: 10,000

Logical: 100

Error Rate: 0.001%

2027

Quantum Advantage

Applications: Drug Discovery

Logical: 500

Error Rate: 0.0001%

2028

Surface Code Success

Physical: 100,000

Logical: 1,000

Code Distance: 31

FAULT TOLERANT

2030

Universal QC

Physical: 1,000,000

Logical: 10,000

Error Rate: 10⁻⁶

2035

Quantum Internet

Network: Global

Nodes: 1,000+

Entanglement: Distributed

Journey Progress:

28%

Achieved Milestones

Current Progress

Future Projections

⚛️

Physical Qubits Growth

50 → 1M

↗ 10x growth every 2 years

📊

Error Rate Improvement

0.2% → 10⁻⁶

↘ 1000x reduction by 2030

🔮

Gate Fidelity

99.9% → 99.9999%

↗ Approaching fault tolerance

📈

Quantum Volume

2⁷ → 2³⁰

↗ Exponential scaling