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KAKEN_25400418seika.pdf
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Download
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:123.8 KB
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:Jan 6, 2017 |
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Total downloads since Jan 6, 2017 : 641
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人工ゲージ場を用いてp波超流動をフェルミ原子気体で実現させるための理論研究
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| Kana |
ジンコウ ゲージバ オ モチイテ pハ チョウリュウドウ オ フェルミ ゲンシ キタイ デ ジツゲンサセル タメ ノ リロン ケンキュウ
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Jinko gejiba o mochiite pha choryudo o ferumi genshi kitai de jitsugensaseru tame no riron kenkyu
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Theoretical studies on the realization of a p-wave superfluid fermi gas by using a synthetic gauge field
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大橋, 洋士
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オオハシ, ヨウジ
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Ohashi, Yoji
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慶應義塾大学・理工学部・教授
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Research team head
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科研費研究者番号 : 60272134
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2016
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科学研究費補助金研究成果報告書
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2015
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| Abstract |
人工ゲージ場で誘起された反対称スピン軌道相互作用を有するs波フェルミガス超流動を用い, p波超流動を実現させる方法を理論的に研究した。様々なタイプのスピン軌道相互作用について, それぞれどのようなp波対振幅が誘起されるか, また, 大きなp波対振幅が得られる状況は実験的に到達可能な超流動転移温度を有するか, を明らかにした。更に, これを初期状態とし, 引力相互作用をs波からp波に変換することで, p波超流動を作り出せることを理論的に示した。
I have theoretically investigated a possible idea to realize a p-wave superfluid Fermi atomic gas, starting from the s-wave superfluid phase with a synthetic anti-symmetric spin-orbit interaction. I clarified what type of p-wave pair amplitude is induced by various kinds of spin-orbit couplings. I also confirmed that the superfluid phase transition temperature where large p-wave pair amplitude is induced is accessible within the current experimental technology. Using the induced p-wave pair amplitude in an s-wave superfluid Fermi gas, I showed that, when one suddenly changes the symmetry of pairing interaction from the s-wave one to a p-wave one, one can immediately realize a p-wave superfluid state.
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研究種目 : 基盤研究(C)(一般)
研究期間 : 2013～2015
課題番号 : 25400418
研究分野 : 凝縮系物理学理論
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