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Limits on Secure Communication Over Quantum Networks via Extendibility
Limits on Secure Communication Over Quantum Networks via Extendibility
Limits on Secure Communication Over Quantum Networks via Extendibility

Detailed Information

자료유형  
 학위논문 서양
최종처리일시  
20260202104657
ISBN  
9798293822089
DDC  
530
저자명  
Singh, Vishal.
서명/저자  
Limits on Secure Communication Over Quantum Networks via Extendibility
발행사항  
[Sl] : Cornell University, 2025
발행사항  
Ann Arbor : ProQuest Dissertations & Theses, 2025
형태사항  
315 p
주기사항  
Source: Dissertations Abstracts International, Volume: 87-03, Section: A.
주기사항  
Advisor: Wilde, Mark.
학위논문주기  
Thesis (Ph.D.)--Cornell University, 2025.
초록/해제  
요약A quantum network promises unconditionally secure transmission of data between its nodes by utilizing its ability to distribute entanglement across distant nodes. However, for most practical purposes, the distribution of entanglement is affected by environmental noise. We study the limits of secure communication between two parties sharing an arbitrary bipartite state or an arbitrary quantum channel under the one-way local operations and classical communication (one-way LOCC) setting, particularly for the non-asymptotic case. We use the ideas of unextendibility of entanglement to quantify the resourcefulness of a bipartite state or a quantum channel for forward-assisted private communication between its bearers, which we use to establish limits on the number of secret bits that can be established between the two parties either exactly, or probabilistically, or approximately. Our results surpass several previously known limits on secure communication under the considered setting. Additionally, several bounds presented in our work are efficiently computable, including the bounds on the one-shot private capacity of a channel, which are the first efficiently computable bounds on these quantities to the best of our knowledge.
일반주제명  
Applied physics
일반주제명  
Quantum physics
일반주제명  
Technical communication
키워드  
Extendibility
키워드  
Quantum information theory
키워드  
Secret-key distillation
키워드  
Secure communication
기타저자  
Cornell University Applied Physics
기본자료저록  
Dissertations Abstracts International. 87-03A.
전자적 위치 및 접속  
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■035    ▼a(MiAaPQ)AAI32115919
■040    ▼aMiAaPQ▼cMiAaPQ
■0820  ▼a530
■1001  ▼aSingh,  Vishal.▼0(orcid)0000-0003-2152-0614
■24510▼aLimits  on  Secure  Communication  Over  Quantum  Networks  via  Extendibility
■260    ▼a[Sl]▼bCornell  University▼c2025
■260  1▼aAnn  Arbor▼bProQuest  Dissertations  &  Theses▼c2025
■300    ▼a315  p
■500    ▼aSource:  Dissertations  Abstracts  International,  Volume:  87-03,  Section:  A.
■500    ▼aAdvisor:  Wilde,  Mark.
■5021  ▼aThesis  (Ph.D.)--Cornell  University,  2025.
■520    ▼aA  quantum  network  promises  unconditionally  secure  transmission  of  data  between  its  nodes  by  utilizing  its  ability  to  distribute  entanglement  across  distant  nodes.  However,  for  most  practical  purposes,  the  distribution  of  entanglement  is  affected  by  environmental  noise.  We  study  the  limits  of  secure  communication  between  two  parties  sharing  an  arbitrary  bipartite  state  or  an  arbitrary  quantum  channel  under  the  one-way  local  operations  and  classical  communication  (one-way  LOCC)  setting,  particularly  for  the  non-asymptotic  case.  We  use  the  ideas  of  unextendibility  of  entanglement  to  quantify  the  resourcefulness  of  a  bipartite  state  or  a  quantum  channel  for  forward-assisted  private  communication  between  its  bearers,  which  we  use  to  establish  limits  on  the  number  of  secret  bits  that  can  be  established  between  the  two  parties  either  exactly,  or  probabilistically,  or  approximately.  Our  results  surpass  several  previously  known  limits  on  secure  communication  under  the  considered  setting.  Additionally,  several  bounds  presented  in  our  work  are  efficiently  computable,  including  the  bounds  on  the  one-shot  private  capacity  of  a  channel,  which  are  the  first  efficiently  computable  bounds  on  these  quantities  to  the  best  of  our  knowledge.
■590    ▼aSchool  code:  0058.
■650  4▼aApplied  physics
■650  4▼aQuantum  physics
■650  4▼aTechnical  communication
■653    ▼aExtendibility
■653    ▼aQuantum  information  theory
■653    ▼aSecret-key  distillation
■653    ▼aSecure  communication
■690    ▼a0215
■690    ▼a0643
■690    ▼a0599
■71020▼aCornell  University▼bApplied  Physics.
■7730  ▼tDissertations  Abstracts  International▼g87-03A.
■790    ▼a0058
■791    ▼aPh.D.
■792    ▼a2025
■793    ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17358408▼nKERIS▼z이  자료의  원문은  한국교육학술정보원에서  제공합니다.

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