• UGI USER
  • Jan 16, 2024
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QUANTUM COMPUTING ESSENTIALS

Focus : Quantum Computing

What is Quantum Computing ?

Quantum computing harnesses the weirdness of atoms to solve problems impossible for regular computers, using qubits that can be both 0 and 1 at once, unlocking superpowers for complex calculations, simulations, and even breaking encryption.

  • Quantum computers use quantum bits (qubits), which can exist in two states simultaneously due to quantum superposition.
  • Quantum gates, like electromagnetic pulses, change the state of qubits or collections of qubits.
Source : CB Insights

Concept of Superposition:

  • Superposition allows a qubit to exist in multiple states simultaneously.
  • Quantum computers leverage superposition for parallel processing, enhancing computational speed.
Key Terms

·    Qubit Superposition: Qubits can exist in multiple states simultaneously, enhancing computing power.

·    Quantum Gates: Manipulate qubit states; e.g., NOT gate flips 0 to 1 and vice versa.

·    Hadamard gate : Generates a superposition of basis states.

·    Controlled-NOT (CNOT) gate : (CNOT) gate acts on two qubits, flipping the target qubit based on the control qubit’s state.

·    Quantum Circuits: Combinations of gates form circuits for information processing.