Abstract: The present disclosure discloses a method for treating a tantalum metal thin film, a quantum device, and a quantum chip. The method includes: preparing an initial tantalum metal thin film; and increasing, after cooling the initial tantalum metal thin film to a predetermined extremely low temperature, the temperature from the predetermined extremely low temperature to normal temperature to obtain a target tantalum metal thin film. The present disclosure solves the technical problem in the related technology: a post-treatment technology for a tantalum metal thin film after preparation of the tantalum metal thin film has a limited positive effect on reducing the energy dissipation of a tantalum-based superconducting quantum device.

Abstract: The present disclosure discloses a method for automatically identifying south troughs by improved Laplace and relates to the technical field of meteorology. The method includes the following steps: acquiring grid data of a geopotential height field; calculating a gradient field of the geopotential height field in an x direction; searching for a turning point where a gradient value turned from being negative to being positive, and cleaning the gradient field; calculating a divergence of the x direction to obtain an improved Laplacian numerical value L?; performing 0,1 binarization processing on the L? to obtain a black-and-white image and a plurality of targets of potential troughs, merging the black-and-white image and the plurality of targets of the potential troughs by expansion, recovering original scale through erosion, and selecting an effective target through an angle of direction of a contour and an axial ratio.

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: Augmented reality, computer vision, and digital ticketing system techniques are described that employ a location determination system. In one example, the location determination system is configured to receiving at least one digital image as part of a live camera feed, identify an object included in the at least one digital image using object recognition, determine a location of the object in relation to a digital map of a physical environment, generate augmented reality digital content indicating the determined location in relation to the digital map, and render the augmented reality digital content as part of the live camera feed for display by a display device.

Abstract: Augmented reality, computer vision, and digital ticketing system techniques are described that employ a location determination system. In one example, the location determination system is configured to receiving at least one digital image as part of a live camera feed, identify an object included in the at least one digital image using object recognition, determine a location of the object in relation to a digital map of a physical environment, generate augmented reality digital content indicating the determined location in relation to the digital map, and render the augmented reality digital content as part of the live camera feed for display by a display device.

Abstract: An always on display method and an electronic device relate to the field of terminal technologies. The electronic device receives a screen-off event. In response to the screen-off event, the electronic device may enter the screen-off state. In the screen-off state, the electronic device may display a first screen-off animation in a first screen-off animation group based on a charging status and power information of the electronic device; and after the first screen-off animation ends, if the electronic device detects a first touch operation input by the user, the electronic device may display a second screen-off animation in the first screen-off animation group in response to the first touch operation.

Abstract: An always on display method and an electronic device are provided and relate to the field of terminal technologies, to perform always on display according to a usage status of the electronic device, so that the usage status of the electronic device is vividly and effectively conveyed to a user in a screen-off state, making always on display content more real-time and interesting. The method includes: receiving, by an electronic device, a screen-off event; in response to the screen-off event, entering, by the electronic device, a screen-off state; and displaying, by the electronic device, a first target screen-off animation in a first display area, where the first target screen-off animation is associated with usage data of the electronic device, and the usage data is used to indicate a usage status of the electronic device.

Abstract: Materials for electrochemical cells are provided. BaZr0.4Ce0.4M0.2O3 compounds, where M represents one or more rare earth elements, are provided for use as electrolytes. PrBa0.5Sr0.5Co2?xFexO5+? is provided for use as a cathode. Also provided are electrochemical cells, such as protonic ceramic fuel cells, incorporating the compounds as electrolytes and cathodes.

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: Augmented reality, computer vision, and digital ticketing system techniques are described that employ a location determination system. In one example, the location determination system is configured to receiving at least one digital image as part of a live camera feed, identify an object included in the at least one digital image using object recognition, determine a location of the object in relation to a digital map of a physical environment, generate augmented reality digital content indicating the determined location in relation to the digital map, and render the augmented reality digital content as part of the live camera feed for display by a display device.

Abstract: Augmented reality, computer vision, and digital ticketing system techniques are described that employ a location determination system. In one example, the location determination system is configured to receiving at least one digital image as part of a live camera feed, identify an object included in the at least one digital image using object recognition, determine a location of the object in relation to a digital map of a physical environment, generate augmented reality digital content indicating the determined location in relation to the digital map, and render the augmented reality digital content as part of the live camera feed for display by a display device.

Abstract: Materials for electrochemical cells are provided. BaZr?0.4#191Ce?0.4#191M?0.2#1910?3#191 compounds, where M represents one or more rare earth elements, are provided for use as electrolytes. PrBa?0.5#191Sr?0.5#191Co?2-x#191Fe?x#191O?5+#1916 is provided for use as a cathode. Also provided are electrochemical cells, such as protonic ceramic fuel cells, incorporating the compounds as electrolytes and cathodes.

Abstract: Augmented reality, computer vision, and digital ticketing system techniques are described that employ a location determination system. In one example, the location determination system is configured to receiving at least one digital image as part of a live camera feed, identify an object included in the at least one digital image using object recognition, determine a location of the object in relation to a digital map of a physical environment, generate augmented reality digital content indicating the determined location in relation to the digital map, and render the augmented reality digital content as part of the live camera feed for display by a display device.