江西科学
江西科學
강서과학
JIANGXI SCIENCE
2012年
1期
11-15
,共5页
涨落耗散定理%Johnson-Nyquist噪声%电荷量子比特
漲落耗散定理%Johnson-Nyquist譟聲%電荷量子比特
창락모산정리%Johnson-Nyquist조성%전하양자비특
Fluctuation dissipation theorem%Johnson-Nyquist noise%Charge quantum bit
从量子统计力学原理导出了涨落耗散定理,并在此基础上证明了Johnson-Nyquist公式。最后,还讨论了Johnson-Nyquist公式在计算电荷量子比特的噪声中的应用,并给出了谱密度与总阻抗之间的关系及阻抗两端间的电压涨落的表达式。
從量子統計力學原理導齣瞭漲落耗散定理,併在此基礎上證明瞭Johnson-Nyquist公式。最後,還討論瞭Johnson-Nyquist公式在計算電荷量子比特的譟聲中的應用,併給齣瞭譜密度與總阻抗之間的關繫及阻抗兩耑間的電壓漲落的錶達式。
종양자통계역학원리도출료창락모산정리,병재차기출상증명료Johnson-Nyquist공식。최후,환토론료Johnson-Nyquist공식재계산전하양자비특적조성중적응용,병급출료보밀도여총조항지간적관계급조항량단간적전압창락적표체식。
They derive the fluctuation dissipation theorem from the principles of quantum statistical mechanics and prove the Johnson-Nyquist formula on this basis.Finally,the applications of the Johnson-Nyquist formula in calculating the charge qubit′s noise are discussed,and the relationship between the spectral density and the total impedance and the expression for the voltage fluctuations between the terminals of the impedance are gived.
