Publications by authors named "Yarui Zheng"
Article Synopsis
- Qubit initialization is crucial in quantum computing, and traditional methods face issues like slow feedback, crosstalk, and complex calibration.* -
- The new method presented achieves fast and accurate qubit resets by modulating the flux in a transmon qubit, reducing excited state population to only 0.08% in 34 ns.* -
- This technique allows for effective second excited state depletion, has minimal impact on nearby qubits, and enables entanglement with single photons, making it beneficial for quantum communication.*
Quantum walks are the quantum analogs of classical random walks, which allow for the simulation of large-scale quantum many-body systems and the realization of universal quantum computation without time-dependent control. We experimentally demonstrate quantum walks of one and two strongly correlated microwave photons in a one-dimensional array of 12 superconducting qubits with short-range interactions. First, in one-photon quantum walks, we observed the propagation of the density and correlation of the quasiparticle excitation of the superconducting qubit and quantum entanglement between qubit pairs.
View Article and Find Full Text PDFWe report the preparation and verification of a genuine 12-qubit entanglement in a superconducting processor. The processor that we designed and fabricated has qubits lying on a 1D chain with relaxation times ranging from 29.6 to 54.
View Article and Find Full Text PDFSuperconducting quantum circuits are a promising candidate for building scalable quantum computers. Here, we use a four-qubit superconducting quantum processor to solve a two-dimensional system of linear equations based on a quantum algorithm proposed by Harrow, Hassidim, and Lloyd [Phys. Rev.
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