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PW Shor

Publications and source records attributed to PW Shor.

5 recordsLinked to original sources
PubMed2000

Simple proof of security of the BB84 quantum key distribution protocol

We prove that the 1984 protocol of Bennett and Brassard (BB84) for quantum key distribution is secure. We first give a key distribution protocol based on entanglement purification, which can be proven secure using methods from Lo and Chau's proof of security for a similar protocol. We then show that the security of this protocol implies the security of BB84. The entanglement purification based protocol uses Calderbank-Shor-Steane codes, and properties of these codes are used to remove the use of quantum computation from the Lo-Chau protocol.

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PubMed1998

On the Structure of the Scaffolding Core of Bacteriophage T4 and Its Role in Head Length Determination.

The scaffolding core in bacteriophages is a temporary structure that plays a major role in determining the shape of the protein shell that encapsulates the viral DNA. In the currently accepted structure for the scaffolding core in bacteriophage T4, there is a symmetry mismatch between the protein shell, which has fivefold symmetry, and the scaffolding core, which is believed to consist of six helical chains. Alternate structures for the scaffolding core in T4 are investigated. Starting with the hypothesis that the shell and a 10-helix core would have matching symmetry, a Vernier mechanism is proposed that explains the previously unexplained behavior of the length determination process in giant head mutants of T4. Other possible Vernier mechanisms for core structures containing six and eight helices are also explored. Copyright 1998 Academic Press.

Journal Article↗