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US 12,556,171 B2Granted
Apparatus, arrangement and method for electromagnetic isolation for quantum computing circuit
AssigneeIQM Finland Oy
InventorsPasi Lähteenmäki, Mikko Möttönen
Life of this patent
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Abstract
Disclosed is an apparatus and a method for facilitating a first frequency filtering and a second frequency filtering together with non-reciprocal frequency conversion for electromagnetic isolation.
Claims19
An apparatus for electromagnetic isolation for a quantum computing circuit, the apparatus comprising:
- a first frequency filter configured for transmitting signals having a frequency within a first lower frequency range and terminating signals having a frequency within a first higher frequency range;
- a second frequency filter configured for terminating signals having a frequency within a second lower frequency range and transmitting signals having a frequency within a second higher frequency range;
- and
- a frequency converter having a first input/output end coupled to the first frequency filter and a second input/output end coupled to the second frequency filter, the frequency converter being configured to become non-reciprocal with respect to signal transmission between the first input/output end and the second input/output end in response to an external drive signal to the frequency converter for either relatively suppressing or relatively strengthening output signals of the frequency converter having a frequency within the first lower frequency range at the first input/output end of the frequency converter with respect to output signals of the frequency converter having a frequency within the second higher frequency range at the second input/output end of the frequency converter.
1 more element
A method for electromagnetic isolation for a quantum computing circuit, the method comprising:
- facilitating frequency filtering at a first frequency filter, where signals having a frequency within a first lower frequency range are transmitted and signals having a frequency within a first higher frequency range are terminated;
- facilitating frequency filtering at a second frequency filter, where signals having a frequency within a second lower frequency range are terminated and signals having a frequency within a second higher frequency range are transmitted;
- and
- facilitating frequency conversion between a first input/output end coupled to the first frequency filter and a second input/output end coupled to the second frequency filter, the frequency conversion being non-reciprocal with respect to signal transmission between the first input/output end and the second input/output end in response to an external drive signal for the frequency conversion for either relatively suppressing or relatively strengthening output signals of the frequency conversion having a frequency within the first lower frequency range at the first input/output end with respect to output signals of the frequency conversion having a frequency within the second higher frequency range at the second input/output end.
1 more element
Dependencies are inferred from the claim text.