quantum channel 中文意思是什麼
quantum channel
解釋
量子通道-
Because of huge data quantum and high demand of channel bit error rate for video transmission, and fallibility, time variability and limited band of wires channel, wireless video system is faced with lots of problems
由於視頻業務的數據量大、對誤比特率要求高，無線通道又具有易錯、時變和帶限的特點，因此通道的誤比特率要比有線環境大得多，且隨著基站和終端位置、方向的改變而變化很大。 -
In chapter we give out an explicit expression of classical capacity of general fermi quantum channel for single mode fermion system under the restriction of input average occupation numbers of fermions ( that is the input power restriction )
第二章給出了輸入費米子平均占據數限定（平均輸入功率限定）的條件下的單模費米系統量子通道的經典容量。 -
The amazing character of the quantum capacity of gaussian channel is that planck constant h takes over the place of input power restriction of classical capacity
高斯通道量子容量的迷人特徵是普朗克常數h取代了經典容量中輸入信號功率限制條件的位置。 -
In quantum system, noise primary results from decoherence and imperfect quantum gates. the code that combat noise is named quantum channel coding
在量子系統中，通道噪聲主要源於消相干效應和量子門的不精確性。 -
Quantum key distribution protocol without classical channel
不需要經典通道的量子密鑰分配協議 -
Both quantum error correcting code and quantum error avoiding code are practical quantum channel coding schemes. we present in this dissertation a new quantum error correcting code scheme, named serially concatenated quantum convolutional code
克服量子通道噪聲的編碼就稱為量子通道編碼，實用的量子通道編碼包括量子糾錯碼和量子避錯碼。 -
In this paper, the application of spin chain in the quantum information processing is introduced, including the application in quantum cryptography, teleportation and quantum computation. spin chain can be used as quantum channel to transport quantum state, and can also be used to realize general quantum gate
介紹了自旋鏈在量子信息過程中的應用，包括在量子密碼和隱形傳輸中以及量子計算中的應用，自旋鏈可以充當量子通道用來傳輸量子態，自旋鏈也可以用來實現量子通用門。 -
The models of unconditional security from quantum channels and noisy channels are two typical methods now. two parties begin the secret - key agreement over a public channel
目前最典型的方法是利用有擾通道或量子通道建立無條件安全模型，通信雙方在公共通道上進行密鑰協商。 -
Information - theoretically secure secret - key agreement is the key to make perfect security. the models of unconditional security from quantum channels and noisy channels are two typical methods now. once the secret - key has been agreed over a public channel, one can use the key to encrypt messages by using one time pad
現在通常的做法是通信雙方使用有擾通道或量子通道建立無條件安全模型，然後在公開認證通道上交互信息進行密鑰協商，通信雙方把協商之後的安全的密鑰作為雙方共享的密鑰使用一次一密體制進行保密通信。 -
In practice, this dissertation focuses on the study of the aforementioned two problems, we have investigated and analyzed the controlling mechanism of the adiabatic conditional geometric quantum phase - shift gates for two - qubit, and realized the geometric quantum computation by making use of the nonadiabatic geometric phase of quantum states of the superconducting josephson junctions quantum interference device system. we have also discussed the accessible information of quantum signal resource ensemble, and studied the teleportation of an arbitrary d - dimensional tv - particle unknown state via a partially - entangled quantum channel ; this dissertation comes in four parts
實際上，我們在本文中就上述兩方面的問題作了一些探討：研究和分析了兩量子位絕熱條件幾何量子相移門的控制機制，利用超導約瑟夫森結量子器件系統的量子態的非絕熱幾何相位實現了幾何量子計算、討論了信源系綜的可接收信息問題以及任意d維n粒子未知量子態通過部分糾纏量子通道的隱態傳輸問題等。 -
Quantum information science is a new subject combining quantum theory and information science. great progress has been made in quantum teleportation, description of quantum entanglement and classification of quantum states. according to this, the following work has been completed : ( 1 ) a scheme for teleporting an unknown n - dimensionni - particle state by making use of the maximum entangled state as quantum channel is proposed
量子信息學是量子力學理論和計算機理論相結合而產生的一門新的交叉學科，在量子隱形傳態、量子糾纏態的描述及量子態的分類等領域取得了重要進展，本文圍繞這幾個方面開展了如下研究工作： （ 1 ）在文章的第二章研究了多能級多粒子量子態的傳輸。 -
Quantum nonlocality and entanglement for a two - mode squeezed vacuum state in a phase damping channel
雙模真空壓縮態在相阻尼情況下的量子糾纏與非定域性 -
In this scheme, a three - particle entangled state is used as quantum channel to teleport a two - qubit atomic state
在此方案中，用一個三粒子糾纏態作為量子通道，傳送兩比特未知原子態。 -
Based on the operator - sum representation of quantum channel, the quantum channel of single mode fermi system is parameterized. the maximum value of the amount of quantum mutual information, that is. the capacity of the channel aided by entanglement is given
基於量子通道的算符求和表示，將單模費米系統量子通道參數化，給出了量子互信息量的最大值，也就是在糾纏輔助下的經典容量的計算方法。 -
The quantum communication can be divided into two stages : in the first stage, the quantum communication is conducted and cryptographic key communication is finished through the quantum channel ; in the second stage, the negotiation of cryptographic key is achieved in order to measure whether any bug exists or not, and then confirms the final cryptographic key, at this time the quantum communication is accomplished
在bb84協議中，量子通信實際上由兩個階段完成：第一階段通過量子通道進行量子通信，進行密鑰的通信；第二階段在經典通道中進行，主要負責密鑰的協商，探測竊聽者是否存在，然後確定最後的密鑰。 -
Utilizing entanglement, we can implement the disembodied transport of an unknown quantum state from one place to another remote place with high - fidelity, i. e. quantum teleportation. via entanglement, we can also improve the channel capacity of classical signal in quantum channel, i. e. quantum dense coding, even we can entangle two quantum systems that have never directly interacted with each other by means of entanglement swapping
利用量子糾纏，通訊雙方可以實現對一個量子態的高保真度遠程傳輸，即量子離物傳態；利用量子糾纏，通訊雙方可以實現經典信息的高通道容量傳輸，即量子密集編碼；甚至可以使原本不糾纏的量子系統產生糾纏，即糾纏交換。 -
On the basis of principles of quantum teleportation, work that has been done in this thesis is as following : in practice, the entangled state used as quantum channel is always not a maximally entangled state because of interference of environment
本論文基於量子信息中的量子隱形傳態思想，開展了如下工作：由於熱庫引起的消糾纏問題的存在，在實際的量子隱形傳態過程中，量子通道通常不易保持最大糾纏態。 -
This paper presented a scheme to probabilistically teleport an arbitrary and unknown three - particle entangled state via three pairs non - maximally entangled states as the quantum channel
摘要提出了一種任意未知三粒子糾纏態通過三對部分糾纏態作為通道的概率傳遞方案。 -
Chapter3 : based on quantum channel lossy in practical qkd > we propose and devise to quantum eavesdropping system. the research shows that breidbart eavesdropping / beamsplitter is the more effective one breidbart eavesdropping / breidbart ( b / b strategy )
研究表明，在實際qkd系統中得出了breidbart基分束攻擊相結合的方法是比截取重發策略和分束攻擊更為有效的竊聽方案。 -
In this thesis, quantum entropy theories are applied to study quantum entanglement and other problems : quantum channel ? two - particle teleportation and its interpretation in terms of entropy ? quantum information squeezing of atom and so on in quantum systems
本文運用量子熵理論著重研究了量子系統中的糾纏，此外還探討了量子力學通道、二粒子隱形傳態的熵描述及原子信息熵壓縮等問題。
分享友人