Quantum-coherent transport in coupled quantum-dots

Proceedings of the 2nd IEEE Conference on Nanotechnology - Trang 333-336
J.P. Bird1, M. Elhassan1, A. Shailos1, C. Prasad1, D.K. Ferry1, N. Aoki2, L.-H. Lin2, Y. Ochiai2, K. Ishibashi3, Y. Aoyagi3
1Department of Electrical Engineering, Arizona State University, Tempe, AZ, USA
2Department of Materials Technology, Chiba University, Chiba, Japan
3Semiconductors Laboratory, RIKEN, Wako Insutitute, Saitama, Japan

Tóm tắt

The details of electron interference in quantum-dot systems coupled via quantum point contacts (QPCs) is studied via simulation and experiment. In both open and closed coupled systems, one sees transitions from multi- to single-dot behavior, even when the QPCs support several modes. The results also reveal a non-trivial scaling of the conductance fluctuations in quantum-dot arrays, arising from the influence of the inter-dot coupling on energy hybridization.

Từ khóa

#Quantum dots #Fluctuations #Interference #Electrons #Tunneling #Materials science and technology #Laboratories #Contacts #Reservoirs #Magnetic fields

Tài liệu tham khảo

10.1063/1.1490404 10.1103/PhysRevLett.88.236804 elhassan, 2001, Coupling-driven transition from multi-to single-dot interference in open quantum-dot arrays, Phys Rev B, 64, 10.1103/PhysRevB.64.085325 10.1126/science.274.5291.1332 10.1063/1.1472471 0 10.1103/PhysRevB.43.2442 10.1103/PhysRevB.52.8244 10.1103/PhysRevB.60.13676 stöckmann, 1999, Quantum Chaos An Introduction 10.1103/PhysRevLett.82.4691
Thông tin
Thông tin xuất bản

Proceedings of the 2nd IEEE Conference on Nanotechnology

333-336

Thông tin tác giả