Why in the News?
Google has unveiled its latest quantum processor, ‘Willow’, which has sparked excitement about the potential of quantum computers to solve practical problems.
About Willow Quantum Processor:
- Google’s team of researchers developed Willow and shared their results in the scientific journal Nature.
- Willow has 105 qubits, which are the basic units of information in quantum computers.
- Some qubits perform the actual calculations (called data qubits).
- Others check for mistakes and fix them (called measurement qubits).
- It operates at an extremely low temperature—almost absolute zero (-273.15°C)—to keep its qubits stable.
- How fast is It? Willow solved a tough problem in just a few minutes. The same task would take the world’s best regular computer 10 septillion years (that’s 1 followed by 24 zeros!).
- Each qubit can stay stable for 100 microseconds (a tiny fraction of a second), which is a big improvement for quantum computers.
Features and Significance
- Smarter Error Handling:
- Quantum computers are extremely sensitive, and even the tiniest disturbance can cause errors.
- Willow uses a system where some qubits (called measurement qubits) are dedicated to spotting and fixing errors without disturbing the main qubits (called data qubits) that are doing the calculations.
- Bigger, Better Performance:
- Willow has 105 qubits: about half for computations and the rest for error correction.
- Most quantum computers become less reliable as more qubits are added. Willow is different—it actually improves its performance as more qubits are included.
- Longer Stability:
- Qubits in Willow remain stable for 100 microseconds—a significant improvement that allows it to perform more complex tasks.
PYQ:[2022] Which one of the following is the context in which the term “qubit” is mentioned? (a) Cloud Services |
