MULTIPLEXED READOUT OF QUANTUM DEVICES
A system and apparatus for multiplexed readout of quantum devices comprises at a radial combiner comprising a center feed line, a radial line, and a waveguide port and a filter operably connected to the radial combiner. The filter can comprise a dual mode filter providing an elliptical filter response. The system includes a port connecting each of the radial combiners and the filters. The system further comprises at least one readout cavity.
1 . A system for multiplexed readout of quantum devices, comprising:
at least one radial combiner; and
at least one filter operably connected to the radial combiner.
2 . The system for multiplexed readout of quantum devices of claim 1 wherein the filter comprises:
a dual mode filter.
3 . The system for multiplexed readout of quantum devices of claim 2 wherein the dual mode filter provides an elliptical filter response.
4 . The system for multiplexed readout of quantum devices of claim 1 further comprising:
a port connecting each of the at least one radial combiner and the at least one filter.
5 . The system for multiplexed readout of quantum devices wherein the radial combiner comprises:
a center feed line;
at least one radial line; and
at least one waveguide port.
6 . The system for multiplexed readout of quantum devices of claim 5 wherein the center feed line further comprises:
a waveguide section; and
a mode transducer section.
7 . The system for multiplexed readout of quantum devices further comprising:
at least one readout cavity.
8 . The system for multiplexed readout of quantum devices of claim 7 wherein the readout cavity comprises:
an RF cavity for reading out qubits.
9 . A system for multiplexed readout of quantum devices, comprising:
a first multiplexer configured to accept an input;
a plurality of readout cavities operably connected to said first multiplexer;
a second multiplexer operably connected to the plurality of readout cavities, the second multiplexer configured to provide an output.
10 . The system for multiplexed readout of quantum devices of claim 9 , wherein the first multiplexer comprises:
at least one radial combiner; and
at least one filter operably connected to the radial combiner; and
wherein the second multiplexer comprises:
at least one radial combiner; and
at least one filter operably connected to the radial combiner.
11 . The system for multiplexed readout of quantum devices of claim 10 , wherein each of the respective filters comprises:
a dual mode filter.
12 . The system for multiplexed readout of quantum devices of claim 11 wherein the dual mode filter provides an elliptical filter response.
13 . The system for multiplexed readout of quantum devices of claim 9 further comprising:
a port connecting each of the at least one radial combiner and the at least one filter.
14 . The system for multiplexed readout of quantum devices wherein the radial combiner comprises:
a center feed line;
at least one radial line; and
at least one waveguide port.
15 . The system for multiplexed readout of quantum devices of claim 9 wherein each of the plurality of readout cavities comprises:
an RF cavity for reading out qubits.
16 . A system for multiplexed readout of quantum devices, comprising:
a first multiplexer configured to accept an input;
a plurality of input scaling multiplexers attached to the first multiplexer;
a plurality of readout cavities operably connected to the plurality of input scaling multiplexers;
a plurality of output scaling multiplexers operably connected to the plurality of readout cavities; and
a second multiplexer operably connected to the plurality of output scaling multiplexers, the second multiplexer configured to provide an output.
17 . The system for multiplexed readout of quantum devices of claim 16 , wherein the first multiplexer comprises:
at least one radial combiner; and
at least one filter operably connected to the radial combiner; and
wherein the second multiplexer comprises:
at least one radial combiner; and
at least one filter operably connected to the radial combiner.
18 . The system for multiplexed readout of quantum devices of claim 16 , wherein the plurality of input scaling multiplexers each comprises:
at least one radial combiner; and
at least one filter operably connected to the radial combiner; and
wherein the plurality of output scaling multiplexers each comprises:
at least one radial combiner; and
at least one filter operably connected to the radial combiner.
19 . The system for multiplexed readout of quantum devices of claim 17 , wherein each of the plurality of readout cavities has a staggard frequency from each of the other readout cavities in the plurality of readout cavities.
20 . The system for multiplexed readout of quantum devices of claim 16 wherein each of the plurality of readout cavities comprises:
an RF cavity for reading out qubits.