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Phase Diagram of a Quantum Hopfield Spin Glass with the Pseudo-Inverse Rule |
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| Authors: | Yu-Qiang MA Chang-De GONG |
| Affiliation: | 1. National Laboratory of Solid State Microstructures, Institute for Solid State Physics, Nanjing University, Nanjing 210093, China;2. Center for Advanced Studies in Science and Technology of Microstructures, Nanjing 210093, China;3. Micro-Structure Laboratory of Solid State Physics, Nanjing University, Nanjing 210008, China;4. CCAST (World Laboratory), P. O. Box 8730 Beijing 100080, China |
| Abstract: | A quantum Ising spin-glass model in a transverse field is presented. The network is based on a modified version of the Hopfield spin glass. The equations for the order parameters describing the ordered phases are obtained, and the phase transitions of the system are analyzed. The ordered phases are suppressed by the existence of both quan turn effects and the random overlaps between the patterns. |
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