Meanwhile it is shown that squeezing of field and photon antibunching can be greatly enhanced via selective atomic measurements 同時發(fā)現(xiàn)通過對原子的選擇性測量,場的壓縮特性和光子的反聚束效應(yīng)會增強。
For these states, i study the mean photon number distribution and their non-classical properties, which are photon antibunching, violations of cauchy-schwarz inequality and two-mode squeezing 對這些態(tài),我們研究了平均光子數(shù)分布及其非經(jīng)典特性,它們包括光子聚束,cauchy-schwarz不等式的違背和雙模壓縮。
We call the new quantum phenomenon that ca n't be explained by classical theory non-classical feature of cavity field . it has been proved by experiment, that quantum states of cavity field can exhibit three non-classical features, i . e . photon antibunching effect, sub-poissonian statistics distribution, and squeezed states 在光場與原子相互作用的過程中會出現(xiàn)某些不能為經(jīng)典理論所解釋的新的量子現(xiàn)象,人們統(tǒng)稱這些現(xiàn)象為光場的非經(jīng)典效應(yīng),目前實驗上所觀測到的非經(jīng)典現(xiàn)象有光子的反聚束效應(yīng)、亞泊松分布和光場的壓縮效應(yīng)。
The results show that the light field is squeezed regularly, and that the collapse-and-revival of the atomic rabi oscillation appears under the detuning . when the initial squeezed light-field factor r is weak, photon bunching alternates with photon antibunching, and the detuning leads to the reduction of photon antibunching; to the contrary, the factor r is strong, photon statistical properties are steady bunching, and the detuning makes two-mode correlation properties steady 數(shù)值計算結(jié)果表明:光場呈現(xiàn)出較規(guī)則的壓縮現(xiàn)象;失諧量使原子rabi振蕩呈現(xiàn)周期性崩塌與復(fù)蘇現(xiàn)象;當r較小時,光子的聚束效應(yīng)與反聚束效應(yīng)交替出現(xiàn),失諧量將削弱光子的反聚束效應(yīng);當r較大時,光子呈現(xiàn)恒定的聚束效應(yīng),失諧量增強光場兩模非經(jīng)典相關(guān)的穩(wěn)定性。
The results show that the light field is squeezed regularly, and that the collapse-and-revival of the atomic rabi oscillation appears under the detuning . when the initial squeezed light-field factor r is weak, photon bunching alternates with photon antibunching, and the detuning leads to the reduction of photon antibunching; to the contrary, the factor r is strong, photon statistical properties are steady bunching, and the detuning makes two-mode correlation properties steady 數(shù)值計算結(jié)果表明:光場呈現(xiàn)出較規(guī)則的壓縮現(xiàn)象;失諧量使原子rabi振蕩呈現(xiàn)周期性崩塌與復(fù)蘇現(xiàn)象;當r較小時,光子的聚束效應(yīng)與反聚束效應(yīng)交替出現(xiàn),失諧量將削弱光子的反聚束效應(yīng);當r較大時,光子呈現(xiàn)恒定的聚束效應(yīng),失諧量增強光場兩模非經(jīng)典相關(guān)的穩(wěn)定性。