Relating to quantum computing
According to the invention there is provided an ion trap comprising a plurality of electrodes forming an ion trap, a plurality of DACs, each DAC being configured to control an electrode, a clock signal generator, configured to transmit a clock signal to each electrode, a multiplexer configured to stop or transmit the clock signal from the clock signal generator to one or more of the DACs and a clock signal controller configured to control, by the multiplexer, the clock signal to DACs.
1 . A quantum computer comprising:
a quantum processor comprising:
(a) a clock, wherein the clock is configured to generate a clock signal;
(b) a multiplexer, wherein the multiplexer is configured to receive the clock signal from the clock; and
(c) a clock control unit, wherein the clock control unit is configured to control, by the multiplexer, a transmission of the clock signal to a digital-to-analog converter (DAC), and wherein the clock signal is configured to control a gate operation.
2 . The quantum computer of claim 1 , wherein the clock control unit is configured to transmit a clock control signal to the multiplexer, wherein the clock control signal is configured to control the transmission of the clock signal to the DAC.
3 . The quantum computer of claim 1 , further comprising a plurality of DACs comprising at least the DAC.
4 . The quantum computer of claim 3 , wherein the multiplexer is configured to transmit the clock signal to each DAC in the plurality of DACs.
5 . The quantum computer of claim 3 , wherein the multiplexer is configured to transmit the clock signal to a group of DACs in the plurality of DACs.
6 . The quantum computer of claim 3 , further comprising a plurality of multiplexers comprising at least the multiplexer.
7 . The quantum computer of claim 6 , wherein the multiplexer in the plurality of multiplexers is configured to transmit the clock signal to the DAC in the plurality of DACs.
8 . The quantum computer of claim 6 , wherein each multiplexer in the plurality of multiplexers is configured to transmit the clock signal to a group of DACs in the plurality of DACs.
9 . The quantum computer of claim 8 , wherein the group of DACs comprises a set of DACs within a region.
10 . The quantum computer of claim 8 , wherein the group of DACs comprises either direct current (DC) DACs or radio frequency (RF) DACs.
11 . The quantum computer of claim 8 , wherein the DAC in the plurality of DACs is in multiple groups of DACs, wherein each of the multiple groups of DACs comprises a set of DACs with a region.
12 . The quantum computer of claim 6 , wherein the plurality of multiplexers is arranged in a tree structure.
13 . The quantum computer of claim 1 , wherein the DAC is configured to generate a direct current (DC) signal or a radio frequency (RF) signal to an electrode.
14 . The quantum computer of claim 1 , wherein the DAC corresponds to an electrode, and wherein the electrode is configured to manipulate an ion.
15 . The quantum computer of claim 14 , wherein the clock control signal is configured to stop transmission of the clock signal to the DAC when the ion is not in a region associated with the electrode.
16 . The quantum computer of claim 14 , wherein the clock control signal is configured to stop transmission of the clock signal to the DAC when the ion is not moving.
17 . The quantum computer of claim 1 , wherein the quantum computer is an ion trap quantum computer.
18 . A method of manipulating ions in a quantum computer, the method comprising:
(a) generating a clock signal and a clock control signal;
(b) transmitting the clock signal and the clock control signal to a multiplexer; and
(c) transmitting, by the multiplexer, the clock signal to a digital-to-analog converter (DAC), wherein the clock control signal is configured to control the transmission of the clock signal to the DAC, and wherein the clock signal is configured to control a gate operation.