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by Ciro Santilli (@cirosantilli, 37)

Empty circle control qubit notation

 ... Analog and digital quantum computers Digital quantum computer Quantum logic gate Single-qubit gate Multi-qubit gate Controlled quantum gate
 0 By others on same topic  0 Discussions  Updated 2025-05-23  +Created 1970-01-01  See my version
Some authors use the convention of:
  • filled black circle: conventional controlled quantum gate, i.e. operate if control qubit is active
  • empty (White) circle: operate if control qubit is inactive

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  1. Controlled quantum gate
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  4. Quantum logic gate
  5. Digital quantum computer
  6. Analog and digital quantum computers
  7. Model of quantum computing
  8. Quantum computer type
  9. Quantum computing hardware
  10. Quantum computing
  11. Quantum information
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