公开(公告)号：US07539314B2

公开(公告)日：2009-05-26

申请号：US11503774

申请日：2006-08-14

申请人： Audrius Berzanskis ,  Brandon Kwok ,  Harry Vig ,  Jonathan Young

发明人： Audrius Berzanskis ,  Brandon Kwok ,  Harry Vig ,  Jonathan Young

IPC分类号： H04L9/00 ,  H04L9/08

CPC分类号： H04L9/0852 ,  H04L9/12

摘要： Systems and methods for exchanging and processing encoded quantum signals in quantum key distribution (QKD) systems in real time. A stream of quantum signals is sent from Alice to Bob. Alice only encodes sets or “frames” of the streamed quantum signals based on receiving a “ready” message from Bob. This allows for Bob to finish processing the previous frame of data by allowing different bit buffers to fill and then be used for data processing. This approach results in gaps in between frames wherein quantum signals in the stream are sent unencoded and ignored by Bob. However, those quantum signals that are encoded for the given frame are efficiently processed, which on the whole is better than missing encoded quantum signals because Bob is not ready to receive and process them.

摘要翻译： 在量子密钥分配（QKD）系统中实时交换和处理编码量子信号的系统和方法。 量子信号流从爱丽丝发送到鲍勃。 基于从Bob接收到“准备”消息，爱丽丝只对流量子信号的集合或“帧”进行编码。 这允许Bob通过允许不同的位缓冲器填充然后用于数据处理来完成对前一帧数据的处理。 这种方法导致帧之间的间隙，其中流中的量子信号被未被编码并由Bob忽略。 然而，对于给定帧编码的那些量子信号被有效地处理，由于Bob没有准备好接收和处理这些量子信号，所以总体上比编码的量子信号更好。

公开(公告)号：US20080037790A1

公开(公告)日：2008-02-14

申请号：US11503774

申请日：2006-08-14

申请人： Audrius Berzanskis ,  Brandon Kwok ,  Harry Vig ,  Jonathan Young

发明人： Audrius Berzanskis ,  Brandon Kwok ,  Harry Vig ,  Jonathan Young

IPC分类号： H04L9/00

CPC分类号： H04L9/0852 ,  H04L9/12

摘要： Systems and methods for exchanging and processing encoded quantum signals in quantum key distribution (QKD) systems in real time. A stream of quantum signals is sent from Alice to Bob. Alice only encodes sets or “frames” of the streamed quantum signals based on receiving a “ready” message from Bob. This allows for Bob to finish processing the previous frame of data by allowing different bit buffers to fill and then be used for data processing. This approach results in gaps in between frames wherein quantum signals in the stream are sent unencoded and ignored by Bob. However, those quantum signals that are encoded for the given frame are efficiently processed, which on the whole is better than missing encoded quantum signals because Bob is not ready to receive and process them.

摘要翻译： 在量子密钥分配（QKD）系统中实时交换和处理编码量子信号的系统和方法。 量子信号流从爱丽丝发送到鲍勃。 基于从Bob接收到“准备”消息，爱丽丝只对流量子信号的集合或“帧”进行编码。 这允许Bob通过允许不同的位缓冲器填充然后用于数据处理来完成对前一帧数据的处理。 这种方法导致帧之间的间隙，其中流中的量子信号被未被编码并由Bob忽略。 然而，对于给定帧编码的那些量子信号被有效地处理，由于Bob没有准备好接收和处理这些量子信号，所以总体上比编码的量子信号更好。

公开(公告)号：US20100241912A1

公开(公告)日：2010-09-23

申请号：US11397772

申请日：2006-04-04

申请人： Brandon Kwok ,  A. Craig Beal ,  Audrius Berzanskis ,  Wensheng Sun

发明人： Brandon Kwok ,  A. Craig Beal ,  Audrius Berzanskis ,  Wensheng Sun

IPC分类号： G06F11/00

CPC分类号： H04L9/0858

摘要： A fast bit-error rate (F-BER) calculation mode for a QKD system is disclosed, wherein the method includes establishing versions of a sifted key in respective sifted-bits (SB) buffers in respective QKD stations (Alice and Bob). The method also includes sending Alice's version of the sifted key to Bob, and Bob performing a comparison of the two sifted key versions. The number of bit errors between the two sifted key versions relative to the length of the sifted key yields the F-BER. The F-BER is calculated much more quickly than the conventional BER calculation (“N-BER”), which involves performing a relatively complex error-correction algorithm. The F-BER calculation mode is particularly useful in quickly setting up and/or calibrating a QKD system, and can be repeated quickly to provide updated BER measurements after each QKD system adjustment.

摘要翻译： 公开了一种用于QKD系统的快速误码率（F-BER）计算模式，其中该方法包括在相应的QKD站（Alice和Bob）中的相应的筛选位（SB）缓冲器中建立筛选密钥的版本。 该方法还包括将筛选密钥的Alice版本发送给Bob，Bob执行两个筛选密钥版本的比较。 两个筛选密钥版本之间的相对于筛选密钥长度的位错误的数量产生了F-BER。 比传统的BER计算（“N-BER”）更快地计算出了F-BER，这涉及到执行相对复杂的纠错算法。 F-BER计算模式在快速设置和/或校准QKD系统中特别有用，并且可以在每个QKD系统调整后快速重复以提供更新的BER测量。