Abstract: A superconducting circuit having a Josephson junction includes a first electrode layer for signal transmission; a second electrode layer for signal transmission; and an insulating layer arranged between the first electrode layer and the second electrode layer to form a Josephson junction, wherein, the first electrode layer and the second electrode layer are composed of a preset material, the insulating layer is composed of a compound corresponding to the preset material, and the preset material includes a non-aluminum superconducting material to prolong a coherence time of superconducting qubits.

Abstract: A superconducting circuit having a Josephson junction includes a first electrode layer for signal transmission; a second electrode layer for signal transmission; and an insulating layer arranged between the first electrode layer and the second electrode layer to form a Josephson junction, wherein, the first electrode layer and the second electrode layer are composed of a preset material, the insulating layer is composed of a compound corresponding to the preset material, and the preset material includes a non-aluminum superconducting material to prolong a coherence time of superconducting qubits.

Abstract: Methods, apparatuses, and devices for quantum chip preparation include acquiring a coplanar waveguide in a quantum chip; and establishing a connecting bridge on the coplanar waveguide using a bonding machine, wherein the connecting bridge is configured to connect a first reference ground and a second reference ground located on two sides of the coplanar waveguide to change the chip electromagnetic resonance frequency. A quantum chip includes a transmission line configured for signal transmission; and a resonant cavity coupled to the transmission line and configured to regulate an operating state of qubits on the quantum chip, wherein the transmission line and the resonant cavity are both composed of a coplanar waveguide, the coplanar waveguide is provided with a connecting bridge, and the connecting bridge is configured to connect a first reference ground and a second reference ground on two sides of the coplanar waveguide to change the chip electromagnetic resonance frequency.

Abstract: An authentication method is provided. The authentication method includes receiving a login request from a client terminal. The login request may be generated based on an identification feature of the client terminal, and the login request may include account information associated with the client terminal. The method may further include identifying the identification feature based on the login request, determining whether a database associated with a server includes the identification feature and the account information, generating login status information based on a result of the determination and sending the login status information to the client terminal, and if the login status information indicates a login success of the client terminal, initiating data communications with the client terminal.

Abstract: Disclosed are a microgranular water-soluble fertilizer co-produced from potassium nitrate by tower melt and a method of preparing the same, which relate to the technical field of production of water-soluble fertilizers. The microgranular water-soluble fertilizer co-produced from potassium nitrate by tower melt is prepared from potassium nitrate concentrate, urea, industrial monoammonium phosphate, water-soluble ammonium polyphosphate, potassium sulfate, EDTA-Fe, EDTA-Zn, EDTA-Mn, boric acid and ammonium heptamolybdate. The microgranular water-soluble fertilizer product co-produced from potassium nitrate by tower melt has balanced and stable nutrients. The product is microgranular, has a smooth appearance, is less susceptible to agglomeration, is easy to be absorbed and utilized by crops, and contains a full range of nutrients. In addition, the product is produced by a process employing fully automatic dispensing equipment, which mainly integrates “dispensing, mixing and packaging” and is fully automated.

Abstract: An authentication method is provided. The authentication method includes receiving a login request from a client terminal. The login request may be generated based on an identification feature of the client terminal, and the login request may include account information associated with the client terminal. The method may further include identifying the identification feature based on the login request, determining whether a database associated with a server includes the identification feature and the account information, generating login status information based on a result of the determination and sending the login status information to the client terminal, and if the login status information indicates a login success of the client terminal, initiating data communications with the client terminal.