Proposal of controlled NOT gate using FQHE system and observation of large life time of laser triggered conductance change in LaSrCuO film with localization
| Autor: | Masanori Sugahara, Tomonori Urata, Takeshi Kawabata, Masashi Fukutomi, Jun Asai, Mihoko Wada, Sergei Kruchinin |
|---|---|
| Rok vydání: | 2002 |
| Předmět: |
Physics
Condensed matter physics Oscillation Energy Engineering and Power Technology Conductance Electron Condensed Matter::Mesoscopic Systems and Quantum Hall Effect Condensed Matter Physics Laser Electronic Optical and Magnetic Materials law.invention Hysteresis law Controlled NOT gate Fractional quantum Hall effect Electrical and Electronic Engineering Quantum computer |
| Zdroj: | Physica C: Superconductivity. 367:234-236 |
| ISSN: | 0921-4534 |
| Popis: | According to a theoretical proposal denoting large decoherence time in fractional quantum Hall effect (FQHE) system, we studied the CO2 laser irradiation effect on the La1:95Sr0:05CuO4� d film, whose electronic behavior is supposed to be described by FQHE caused by the unique zero-point oscillation of Cu electron. The irradiation induced conductivity change at room temperature shows the switching of hysteretic behavior triggered by the laser light. The effect remains after the irradiation for several days. The long life time can be explained by the large decoherence time of FQHE system, which is necessary for the feasibility of quantum computing. 2002 Elsevier Science B.V. All rights reserved. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect