Open AccessBrief Notes on The Possibility of Copying Qubits in Quantum Systems
Author(s) -
Artyom M. Grigoryan,
Sos S. Agaian
Publication year - 2022
Publication title -
wseas transactions on circuits and systems/wseas transactions on circuits
Language(s) - English
Resource type - Journals
eISSN - 2224-266X
pISSN - 1109-2734
DOI - 10.37394/23201.2022.21.2
Subject(s) - qubit , quantum information , quantum entanglement , quantum network , quantum technology , quantum teleportation , quantum channel , quantum mechanics , quantum error correction , physics , open quantum system , theoretical physics , theoretical computer science , computer science , quantum
Copying the quantum states is contradictory to classical information processing since the fundamental difference between classical and quantum information is that while classical information can be copied perfectly, quantum information cannot. However, this statement does not rule out the risk of building a device that can reproduce a set of quantum states. This paper investigates the naturally arising question of how well or under what conditions one can copy and measure an arbitrary quantum superposition of states. The CNOT and XOR operation-based quantum circuit is presented that exhibits entanglement of states and allows for measuring the doubled qubits.