Compact RF driver for Paul traps used in quantum computers and methods of making and using same
Aspects of the present disclosure describe a compact RF driver circuit for Paul traps in trapped ion quantum computers and methods, and structures including same.
1. A compact RF driver circuit for a Paul trap in a trapped ion quantum computer system comprising:
the trapped ion quantum computer system including
the compact RF driver circuit having
an inductive-capacitive tank circuit;
an unmatched, low-output-impedance amplifier (<4 Ω) that electrically drives the tank circuit; and
the Paul trap electrically connected to an output of the tank circuit.
2. The driver circuit for the quantum computer Paul trap of claim 1 wherein the amplifier exhibits an output impedance of 1 ohm or less.
3. The driver circuit for the quantum computer Paul trap of claim 1 wherein the circuit is operated under cryogenic conditions.
4. The driver circuit for the quantum computer Paul trap of claim 3 wherein the tank circuit includes a superconducting inductor and the Paul trap is driven at a trap frequency >10 MHz.
5. The driver circuit for the quantum computer Paul trap of claim 1 configured such that it does not include a tuning circuit.
6. The driver circuit for the quantum computer Paul trap of claim 1 configured such that it does not include a helical resonator.
7. A method of operating a Paul trap in a trapped ion quantum computer, said method comprising:
providing a quantum computer system including:
a compact RF driver circuit having
an inductive-capacitive tank circuit;
an unmatched, low-output-impedance amplifier (<4 ohm) electrically connected to the tank circuit;
providing a load to the driver circuit, said load comprising the Paul trap; and
operating the driver circuit such that the Paul trap is operational to trap sample ions.
8. The method of claim 7 wherein the unmatched, low-output-impedance amplifier exhibits an output impedance of 1 ohm or less.
9. The method of claim 7 further comprising providing cryogenic conditions for the Paul trap and the driver circuit.
10. The method of claim 7 wherein the tank circuit includes a superconducting inductor.
11. The method of claim 10 wherein the Paul trap is driven at a frequency >10 MHz.
12. The method of claim 10 wherein the Paul trap is driven at a frequency from 30 MHz to 500 MHz.
13. The method of claim 7 wherein the quantum computer system does not include a helical resonator.
14. The method of claim 7 wherein the driver circuit does not include a tuning circuit.