Facts for Prelims (FFP)
Source: Scientific American
Context: IBM has introduced Condor, its latest quantum computing chip featuring 1,121 superconducting qubits, surpassing the 1,000 qubit milestone.
What are Qubits?
A qubit, short for a quantum bit, is the basic unit of quantum information in quantum computing. Unlike classical bits, which can exist in a state of 0 or 1, qubits can exist in a superposition of both 0 and 1 simultaneously. This property, along with entanglement and other Superposition, enables quantum computers to perform complex calculations much more efficiently than classical computers for certain tasks.
However, qubits exhibit high sensitivity and may cause calculation errors, and the problem worsens as quantum computer size increases
IBM plans to leverage the quantum low-density parity check (qLDPC) error-correction scheme, aiming to reduce the number of physical qubits needed for each logical qubit.
Prelims Links:
Which one of the following is the context in which the term “qubit” is mentioned? (USPC 2022)
(a) Cloud Services
(b) Quantum Computing
(c) Visible Light Communication Technologies
(d) Wireless Communication Technologies
