In this paper,we propose a scheme for implementing the nonadiabatic holonomic quantum computation(NHQC+)of two Rydberg atoms by using invariant-based reverse engineering(IBRE).The scheme is based on Förster reson...In this paper,we propose a scheme for implementing the nonadiabatic holonomic quantum computation(NHQC+)of two Rydberg atoms by using invariant-based reverse engineering(IBRE).The scheme is based on Förster resonance induced by strong dipole-dipole interaction between two Rydberg atoms,which provides a selective coupling mechanism to simply the dynamics of system.Moreover,for improving the fidelity of the scheme,the optimal control method is introduced to enhance the gate robustness against systematic errors.Numerical simulations show the scheme is robust against the random noise in control fields,the deviation of dipole-dipole interaction,the Förster defect,and the spontaneous emission of atoms.Therefore,the scheme may provide some useful perspectives for the realization of quantum computation with Rydberg atoms.展开更多
Because of quantum superposition,quantum computation can solve many problems,such as factoring large integers[1]and searching unsorted databases[2,3],much faster than classical computation.To realize practical quantum...Because of quantum superposition,quantum computation can solve many problems,such as factoring large integers[1]and searching unsorted databases[2,3],much faster than classical computation.To realize practical quantum computation and then gain the desired advantages,a universal set of quantum gates with sufficiently high fidelities are needed.However,various inevitable errors reduce the gate fidelities and finally collapse the computation results,which makes the realizations of quantum computation very challenging.To展开更多
基金supported by the National Natural Science Foundation of China under Grant Nos 11575045,11874114,and 11674060the Natural Science Funds for Distinguished Young Scholar of Fujian Province under Grant 2020J06011Project from Fuzhou University under Grant JG202001-2.
文摘In this paper,we propose a scheme for implementing the nonadiabatic holonomic quantum computation(NHQC+)of two Rydberg atoms by using invariant-based reverse engineering(IBRE).The scheme is based on Förster resonance induced by strong dipole-dipole interaction between two Rydberg atoms,which provides a selective coupling mechanism to simply the dynamics of system.Moreover,for improving the fidelity of the scheme,the optimal control method is introduced to enhance the gate robustness against systematic errors.Numerical simulations show the scheme is robust against the random noise in control fields,the deviation of dipole-dipole interaction,the Förster defect,and the spontaneous emission of atoms.Therefore,the scheme may provide some useful perspectives for the realization of quantum computation with Rydberg atoms.
文摘Because of quantum superposition,quantum computation can solve many problems,such as factoring large integers[1]and searching unsorted databases[2,3],much faster than classical computation.To realize practical quantum computation and then gain the desired advantages,a universal set of quantum gates with sufficiently high fidelities are needed.However,various inevitable errors reduce the gate fidelities and finally collapse the computation results,which makes the realizations of quantum computation very challenging.To