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In this paper we investigate the photonic tunneling effect between two coupled one-atom laser cavities. The physical system consists of two coupled photonic crystal microcavities and each cavity contains a coherently pumped two-level atom. The dynamics of the system can be described by the master equation in terms of the reduced density operator. It is shown that the photonic tunneling behavior depends on certain physical conditions of the system. In the absence of the pumping field andwithout dissipations, the coherent photon number imbalance between two cavities exhibits the alternating-current Josephson effect. However, when the pumping effect and losses of the system are taken into account, the mean photon number imbalance displays a damped oscillation. In addition, the influence of tunneling amplitude and photonic band-gap structure on the oscillations is also studied. The research gives a further insight into the correlated dynamics of two coupled one-atom laser systems and provides an idea for constructing novel photon tunnel devises. |
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榮譽(yù)版主 (職業(yè)作家)
鐵桿木蟲(chóng) (職業(yè)作家)
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In this paper we investigate the photonic tunneling effect between two coupled one-atom laser cavities. The physical system consists of two coupled photonic crystal microcavities and each cavity contains a coherently pumped two-level atom. The dynamics of the system can be described by the master equation in terms of the reduced density operator. It is shown that the photonic tunneling behavior depends on certain physical conditions of the system. In the absence of the pumping field andwithout dissipations, the coherent photon number imbalance between two cavities exhibits the alternating-current Josephson effect. 在本文中,我們要探討兩個(gè)耦合單原子激光腔的光(量)子隧道效應(yīng)。這個(gè)物理系統(tǒng)由兩個(gè)耦合的光子晶體微腔組成,并且每個(gè)腔內(nèi)都包含一個(gè)相干的兩能級(jí)泵激原子。該系統(tǒng)的動(dòng)力學(xué)原理可以按照約化密度算子的主方程式來(lái)進(jìn)行解釋。它表明,光子隧道的反應(yīng)要依據(jù)特定的物理?xiàng)l件而定。在缺乏注入場(chǎng)和耗散的情況下,在兩個(gè)腔內(nèi)的相干光子數(shù)量的不平衡顯示出交變電流的約瑟夫森(隧道)效應(yīng)。 However, when the pumping effect and losses of the system are taken into account, the mean photon number imbalance displays a damped oscillation. In addition, the influence of tunneling amplitude and photonic band-gap structure on the oscillations is also studied. The research gives a further insight into the correlated dynamics of two coupled one-atom laser systems and provides an idea for constructing novel photon tunnel devises. 然而,當(dāng)將抽運(yùn)效應(yīng)和該系統(tǒng)的損失計(jì)算在內(nèi),這個(gè)平均光子數(shù)不平衡將顯示出阻尼振蕩。另外,該隧道的幅度和在震蕩上的光子帶隙結(jié)構(gòu)的影響也需要進(jìn)行研究。該研究為兩個(gè)耦合的單原子激光系統(tǒng)的動(dòng)力學(xué)提供了更深一步的研究見(jiàn)解并為構(gòu)建新型光子隧道設(shè)備提供了一個(gè)很好的想法(研究基礎(chǔ))。 |
鐵桿木蟲(chóng) (職業(yè)作家)
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在本文中,我們要探討兩個(gè)耦合單原子激光腔的光(量)子隧道效應(yīng)。這個(gè)物理系統(tǒng)由兩個(gè)耦合的光子晶體微腔組成,并且每個(gè)腔內(nèi)都包含一個(gè)相干的兩能級(jí)泵激原子。該系統(tǒng)的動(dòng)力學(xué)原理可以按照約化密度算子的主方程式來(lái)進(jìn)行解釋。它表明,光子隧道的反應(yīng)要依據(jù)特定的物理?xiàng)l件而定。在缺乏注入場(chǎng)和耗散的情況下,在兩個(gè)腔內(nèi)的相干光子數(shù)量的不平衡顯示出交變電流的約瑟夫森(隧道)效應(yīng)。 然而,當(dāng)將抽運(yùn)效應(yīng)和該系統(tǒng)的損失計(jì)算在內(nèi),這個(gè)平均光子數(shù)不平衡將顯示出阻尼振蕩。另外,該隧道的幅度和在震蕩上的光子帶隙結(jié)構(gòu)的影響也需要進(jìn)行研究。該研究為兩個(gè)耦合的單原子激光系統(tǒng)的動(dòng)力學(xué)提供了更深一步的研究見(jiàn)解并為構(gòu)建新型光子隧道設(shè)備提供了一個(gè)很好的想法(研究基礎(chǔ))。 |
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