APL Nameplate
  • Volume/Page
  • Keyword
  • DOI
  • Citation
  • Advanced
   
 
 
 

Flickr Twitter iResearch App Facebook

BROWSE VOLUMES

Year Range: 
Search Issue | RSS Feeds RSS
Previous Issue Next Issue

16 Jul 2007

Volume 91, Issue 3, Articles (03xxxx)

Issue Cover Spotlight Figure

Appl. Phys. Lett. 91, 033106 (2007); http://dx.doi.org/10.1063/1.2757609 (3 pages)

S. Ingole, P. Aella, Sean J. Hearne, and S. T. Picraux
Enlarge Image | Read More
Return to All Sections
back to top
RSS Feeds

Long range and selective coupler for superconducting flux qubits

Hayato Nakano, Kosuke Kakuyanagi, Masahito Ueda, and Kouichi Semba

Appl. Phys. Lett. 91, 032501 (2007); http://dx.doi.org/10.1063/1.2756275 (3 pages) | Cited 3 times

Online Publication Date: 16 July 2007

Full Text: Read Online (HTML) | Download PDF

Show Abstract
The authors propose a qubit-qubit coupling scheme for superconducting flux quantum bits (qubits), where quantized Josephson junction resonator and microwave irradiation are utilized. The junction is used as a tunable inductance controlled by changing the bias current flowing through the junction, and thus the circuit works as a tunable resonator. This enables them to make any qubits interact with the resonator. Entanglement between two of many qubits whose level splittings satisfy some conditions is formed by microwave irradiation causing a two-photon Rabi oscillation. Since the size of the resonator can be as large as submillimeters and qubits interact with it via mutual inductance, their scheme makes it possible to construct a quantum gate involving remote qubits.
Show PACS
03.67.Lx Quantum computation architectures and implementations
03.67.Mn Entanglement measures, witnesses, and other characterizations
85.25.Cp Josephson devices

Charge-order breaking and ferromagnetism in La0.4Ca0.6MnO3 nanoparticles

C. L. Lu, S. Dong, K. F. Wang, F. Gao, P. L. Li, L. Y. Lv, and J.-M. Liu

Appl. Phys. Lett. 91, 032502 (2007); http://dx.doi.org/10.1063/1.2753749 (3 pages) | Cited 42 times

Online Publication Date: 17 July 2007

Full Text: Read Online (HTML) | Download PDF

Show Abstract
La0.4Ca0.6MnO3 nanoparticles of grain size as small as ∼ 20 nm are prepared and their magnetic behaviors are investigated in order to understand the size effect of the charge ordering in manganites. The highly stable charge-ordered state can be significantly suppressed upon reduction of the grain size down to nanometer scale, while the ferromagnetism is enhanced. The magnetic phase separation due to the competition between ferromagnetic state and charge-ordered state as well as the surface spin disordering is responsible for the spin-glass-like state at low temperature.
Show PACS
75.50.Tt Fine-particle systems; nanocrystalline materials
61.46.Df Structure of nanocrystals and nanoparticles ("colloidal" quantum dots but not gate-isolated embedded quantum dots)
75.50.Dd Nonmetallic ferromagnetic materials
75.30.Kz Magnetic phase boundaries (including classical and quantum magnetic transitions, metamagnetism, etc.)
75.25.-j Spin arrangements in magnetically ordered materials (including neutron and spin-polarized electron studies, synchrotron-source x-ray scattering, etc.)
75.10.Nr Spin-glass and other random models
Return to All Sections
Close

Google Calendar

ADVERTISEMENT

Go to AIP Home   © AIP Publishing LLC
close