off-diagonal 中文意思是什麼

off-diagonal 解釋
非對角的
  • off : adv 1 〈運動〉向那邊，隔開。 be off 走，去，逃。 I must be off 我得走了。 Where are you off to 你...
  • diagonal : adj. 1. 對角線的。2. 斜的；斜紋的。n. 1. 【數學】對角線，對頂線。2. 斜紋布。adv. -ly 斜，斜對。
  1. On the one hand, we deduce the off - diagonal term of reduced density matrix is inner - product of two coherent states and we carry out decoherence in macroscopic limits in two special case, on the other hand, we delay decoherent time by controlling the interaction coefficient. in other part, we define two kind independent phase operators by improving two - mode squeezing coherent states in two - mode phase space and resolve their eigenstates

    在第二部分中，我們在雙模相位空間里利用雙模壓縮相干態所對應的算符定義二類獨立的相位算符並相應求出本徵態，而它的產生算符和湮滅算符是通過簡諧振子的產生算符和湮滅算符經過正則變換得到的。
  2. We deduce easily the coherent term of quantum dynamical model ( the off - diagonal of reduced density matrix ) by improving the nature of displace operator and the nature of coherent states. then, the interaction is energies of a two - photon mechanism and the usual one - photon or liner driving mechanism. we deduce the coherent term by improving the nature of squeezing operators, displace operators and canonical transformation

    其一，僅有阻尼相互作用和勢能相互作用，此時利用位移算符的性質和相干態的性質很方便地推導了量子動力學模型的相干項（約化密度矩陣的非對角元） ；其二，考慮的是既有單光子相互作用又有雙光子相互作用，這時利用相干態、壓縮算符及正則變換等的性質推導出相干項。
  3. Tyres for earth moving machinery, dumpers and special vehicles in service on and off the road ; wide base diagonal ply tyres

    公路和非公路用運土機械翻斗車和專用車輛輪胎.第2
  4. Tyres for earth moving machinery, dumpers and special vehicles in service on and off the road ; diagonal ply tyres with a nominal aspect ratio exceeding 90 %

    公路和非公路用運土機械翻斗車和專用車輛輪胎.第1
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