sub-qubit

sub- +‎ qubit

sub-qubit (plural sub-qubits)

1. (physics) A quantity of information less than one qubit, or a physical system used to represent such a quantity.
   • 2005, Mihai Udrescu-Milosav, Quantum Circuits Engineering: Efficient Simulation and Reconfigurable Quantum Hardware, Politehnica University of Timişoara, pages 74–75:

     A solution for fault tolerant quantum computation with arbitrary length is concatenated coding, where each qubit is encoded by a block of n sub-qubits, each sub-qubit being encoded by other n blocks of qubits, and so on […].

   • 062339 (2015), Hui-Hui Qin, Shao-Ming Fei, Xianqing Li-Jost, “Trade-off Relations of Bell Violations among Pairwise Qubit Systems”, in Physical Review A‎, volume 062339:

     We present a trade-off relation satisfied by these maximal violations, which gives rise to restrictions on the distribution of nonlocality among the subqubit systems.