首页>
外国专利>
Reducing spontaneous emission in circuit quantum electrodynamics by a combined readout and filter technique
Reducing spontaneous emission in circuit quantum electrodynamics by a combined readout and filter technique
展开▼
机译:通过组合的读出和滤波技术减少电路量子电动力学中的自发辐射
展开▼
页面导航
摘要
著录项
相似文献
摘要
A mechanism relates a superconductor circuit. A Δ circuit includes a first node connecting a Purcell capacitor to a qubit coupling capacitor, a second node connecting the Purcell capacitor to a readout coupling capacitor, and a third node connecting the qubit coupling capacitor to the readout coupling capacitor. A qubit is connected to the first node and has a qubit frequency. A readout resonator connects to the third node combining with the Purcell capacitor to form a filter. Capacitance of the Purcell capacitor is determined as a factor of the qubit frequency of the qubit and blocks emissions of the qubit at the qubit frequency. Capacitance of the Purcell capacitor causes destructive interference, between a first path containing Purcell capacitor and a second path containing both the qubit coupling capacitor and readout coupling capacitor, in order to block emissions of the qubit at the qubit frequency to the external environment.
展开▼