A superconducting circuit architecture including multiple coupling devices and a superconducting quantum chip
A coupling device and superconducting quantum interference technology, applied in the field of superconducting quantum chips and superconducting quantum computers, can solve problems such as affecting the fidelity of quantum gates and limiting the performance of quantum chips, so as to eliminate parasitic coupling, improve performance, and improve Fidelity effect
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no. 1 example
[0020] see figure 1 , figure 1 is a schematic diagram of the structure of a superconducting circuit including multiple coupling devices according to the first embodiment of the present application, such as figure 1 As shown, the superconducting circuit architecture 100 including multiple coupling devices includes: a first qubit 101 and a second qubit 102, and a first coupling device 103 and a second coupling device 104;
[0021] The first coupling device 103 is respectively coupled to the first qubit 101 and the second qubit 102 through a first connecting member 105;
[0022] The second coupling device 104 is respectively coupled to the first qubit 101 and the second qubit 102 through a second connecting member 106;
[0023] Wherein, the frequency of the first qubit 101 and the second qubit 102 is between the frequency of the first coupling device 103 and the frequency of the second coupling device 104, and the frequency of the first coupling device 103 The non-linear stren...
no. 2 example
[0105] The present application provides a superconducting quantum chip. The superconducting quantum chip includes the superconducting circuit architecture including a plurality of coupling devices in the first embodiment. The superconducting circuit architecture includes: a first qubit and a second qubit bit, and a first coupling device and a second coupling device;
[0106] The first coupling device is respectively coupled to the first qubit and the second qubit through a first connection;
[0107] The second coupling device is respectively coupled to the first qubit and the second qubit through second connectors;
[0108] Wherein, the frequency of the first qubit and the second qubit is between the frequency of the first coupling device and the frequency of the second coupling device, and the nonlinear strength of the first coupling device is related to the The sign of the nonlinear strength of the second coupling device is opposite.
[0109] Optionally, both the first cou...
no. 3 example
[0126] The present application provides a superconducting quantum computer, which includes a superconducting quantum chip, and may also include a control and reading device connected to the superconducting quantum chip. Wherein, the superconducting quantum chip includes the superconducting circuit architecture including multiple coupling devices in the first embodiment, and the superconducting circuit architecture includes: the first qubit and the second qubit, and the first coupling device and the second qubit. coupling device;
[0127] The first coupling device is respectively coupled to the first qubit and the second qubit through a first connection;
[0128] The second coupling device is respectively coupled to the first qubit and the second qubit through second connectors;
[0129] Wherein, the frequency of the first qubit and the second qubit is between the frequency of the first coupling device and the frequency of the second coupling device, and the nonlinear strength...
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