Regulation 10 Amendments to Category 4 - Computers
The section headed Category 4 - Computers is amended as follows.
In the section headed 4A Systems, Equipment and Components, after entry 4A102, insert—
“
4A506 Quantum computers and related “electronic assemblies” and components therefor, as follows: a. Quantum computers as follows: 1. Quantum computers supporting 34 or more, but fewer than 100, ‘fully controlled’, ‘connected’ and ‘working’ ‘physical qubits’, and having a 'C-NOT error' of less than or equal to 10 -4; 2. Quantum computers supporting 100 or more, but fewer than 200, ‘fully controlled’, ‘connected’ and ‘working’ ‘physical qubits’, and having a ‘C-NOT error’ of less than or equal to 10 -3; 3. Quantum computers supporting 200 or more, but fewer than 350, ‘fully controlled’, ‘connected’ and ‘working’ ‘physical qubits’, and having a ‘C-NOT error’ of less than or equal to 2 x10 -3; 4. Quantum computers supporting 350 or more, but fewer than 500, ‘fully controlled’, ‘connected’ and ‘working’ ‘physical qubits’, and having a ‘C-NOT error’ of less than or equal to 3 x10 -3; 5. Quantum computers supporting 500 or more, but fewer than 700, ‘fully controlled’, ‘connected’ and ‘working’ ‘physical’, and having a ‘C-NOT error’ of less than or equal to 4 x 10 -3; 6. Quantum computers supporting 700 or more, but fewer than 1 100, ‘fully controlled’, ‘connected’ and ‘working’ ‘physical qubits’, and having a ‘C-NOT error’ of less than or equal to 5 x 10 -3; 7. Quantum computers supporting 1 100 or more, but fewer than 2 000, ‘fully controlled’, ‘connected’ and ‘working’ ‘physical qubits’, and having a ‘C-NOT error’ of less than or equal to 6 x 10 -3; 8. Quantum computers supporting 2 000 or more ‘fully controlled’, ‘connected’ and ‘working’ ‘physical qubits’; b. Qubit devices and qubit circuits, containing or supporting arrays of ‘physical qubits’, and specially designed for items specified in 4A506.a.; c. Quantum control components and quantum measurement devices, specially designed for items specified in 4A506.a.; Note 1.:
4A506 controls circuit model (or gate-based) and one-way (or measurement-based) quantum computers. This entry does not apply to adiabatic (or annealing) quantum computers.
Note 2.:
Items specified in 4A506 may not necessarily physically contain any qubits. For example, quantum computers based on photonic schemes do not permanently contain a physical item that can be identified as a qubit. Instead, the photonic qubits are generated while the computer is operating and then later discarded.
Note 3.:
Items specified in 4A506.b. include semiconductor, superconducting, and photonic qubit chips and chip arrays; surface ion trap arrays; other qubit confinement technologies; and coherent interconnects between such items.
Note 4.:
4A506.c. controls items designed for calibrating, initialising, manipulating or measuring the resident qubits of a quantum computer.
Technical Notes:
For the purposes of 4A506:
1. A ‘physical qubit’ is a two-level quantum system used to represent the elementary unit of quantum logic by means of manipulations and measurements that are not error corrected. ‘Physical qubits’ are distinguished from logical qubits, in that logical qubits are error corrected qubits comprised of many ‘physical qubits’. 2. ‘Fully controlled’ means the ‘physical qubit’ can be calibrated, initialised, gated, and read out, as necessary. 3. ‘Connected’ means that two-qubit gate operations can be performed between any arbitrary pair of the available ‘working’ ‘physical qubits’. This does not necessarily entail all-to-all connectivity. 4. ‘Working’ means that the ‘physical qubit’ performs universal quantum computational work according to the system specifications for qubit operational fidelity. 5. Supporting 34 or more ‘fully controlled’, ‘connected’, ‘working’ ‘physical qubits’ refers to the capability of a quantum computer to confine, control, measure and process the quantum information embodied in 34 or more ‘physical qubits’. 6. ‘C-NOT error’ is the average physical gate error for the nearest neighbour two-’physical qubit’ Controlled-NOT (C-NOT) gates. 4A507 Computers, “electronic assemblies” and components containing one or more integrated circuits specified in 3A501.a.16. Note:
4A507 includes “digital computers” and hybrid computers.
”.
In the section headed 4D Software—
in entry 4D001.a., for “4A001 to 4A004, or 4D” substitute “4A001 to 4A005, 4A507 or 4D”;
at the end of entry 4D001.b.2., insert—
“
3. Items specified in 4A506.b. or 4A506.c. ”.
In the section headed 4E Technology—
in entry 4E001.a., for “4A” substitute “4A001, 4A003, 4A004, 4A005, 4A101, 4A102, 4A507”;
at the end of entry 4E001.b.2., insert—
“
3. Items specified in 4A506.b. or 4A506.c. ”.