Bramka kwantowa

Logika kwantowa.

A Quantum Gate is the equivalent of a classical logic gate (like AND, OR, NOT) but adapted for the principles of quantum mechanics. Unlike classical gates, which are often dissipative and irreversible, all quantum gates (except for measurement) are Unitary and Reversible. They operate on superpositions of states, allowing for the parallel transformation of quantum information. Mathematically, a gate is a unitary operator $U$ that acts on a state vector $|\psi angle$, such that the total probability is conserved ($U^{\dagger}U = I$).

        graph LR
  Center["Bramka kwantowa"]:::main
  Pre_linear_algebra["linear-algebra"]:::pre --> Center
  click Pre_linear_algebra "/terms/linear-algebra"
  Pre_qubit["qubit"]:::pre --> Center
  click Pre_qubit "/terms/qubit"
  Rel_decoherence["decoherence"]:::related -.-> Center
  click Rel_decoherence "/terms/decoherence"
  Rel_bit["bit"]:::related -.-> Center
  click Rel_bit "/terms/bit"
  Rel_linear_optical_quantum_computer["linear-optical-quantum-computer"]:::related -.-> Center
  click Rel_linear_optical_quantum_computer "/terms/linear-optical-quantum-computer"
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  classDef pre fill:#0f172a,stroke:#3b82f6,color:#94a3b8,rx:5,ry:5;
  classDef child fill:#0f172a,stroke:#10b981,color:#94a3b8,rx:5,ry:5;
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  linkStyle default stroke:#4b5563,stroke-width:2px;

      

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🤓 Expert Deep Dive

## Core Gate Library
- Pauli-X: Quantum NOT gate.
- Hadamard: Puts a qubit into superposition.
- CNOT: Entangles two qubits.
- T-Gate: Necessary for universal fault-tolerant logic.

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