arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 1108.5378cond-mat.mes-hallquant-ph
收藏

双量子点与微波谐振腔的偶极耦合

Dipole coupling of a double quantum dot to a microwave resonator

T. Frey, P. J. Leek, M. Beck, A. Blais, T. Ihn, K. Ensslin, A. Wallraff

摘要:

固态系统中的量子相干性已经在超导电路和半导体量子点中得到证实。这为研究用于量子信息处理的固态系统铺平了道路,与基于原子、离子和光子的其他系统相比,固态系统具有可扩展性的潜在好处。超导电路与微波光子的相干耦合,即电路量子电动力学(QED),开辟了新的研究方向,使量子比特的长距离耦合成为可能。在这里,我们演示了如何超导微波谐振器的电磁场可以耦合到半导体双量子点。双点的电荷稳定性图,通常由直流(DC)传输技术测量,通过色散的耦合谐振器的频移进行了研究。这种混合全固态方法提供了在一个芯片上相干耦合多个量子点和超导量子比特的可能性,并提供了一种用于半导体量子结构的高分辨率光谱学的方法。

英文摘要:

Quantum coherence in solid-state systems has been demonstrated in superconducting circuits and in semiconductor quantum dots. This has paved the way to investigate solid-state systems for quantum information processing with the potential benefit of scalability compared to other systems based on atoms, ions and photons. Coherent coupling of superconducting circuits to microwave photons, circuit quantum electrodynamics (QED), has opened up new research directions and enabled long distance coupling of qubits. Here we demonstrate how the electromagnetic field of a superconducting microwave resonator can be coupled to a semiconductor double quantum dot. The charge stability diagram of the double dot, typically measured by direct current (DC) transport techniques, is investigated via dispersive frequency shifts of the coupled resonator. This hybrid all-solid-state approach offers the potential to coherently couple multiple quantum dot and superconducting qubits together on one chip, and offers a method for high resolution spectroscopy of semiconductor quantum structures.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑