dc.contributor.author |
Ablayev F. |
|
dc.contributor.author |
Moore C. |
|
dc.contributor.author |
Pollett C. |
|
dc.date.accessioned |
2018-09-17T20:39:13Z |
|
dc.date.available |
2018-09-17T20:39:13Z |
|
dc.date.issued |
2002 |
|
dc.identifier.issn |
0302-9743 |
|
dc.identifier.uri |
https://dspace.kpfu.ru/xmlui/handle/net/133830 |
|
dc.description.abstract |
We prove upper and lower bounds on the power of quantum and stochastic branching programs of bounded width. We show any NC1 language can be accepted exactly by a width-2 quantum branching program of polynomial length, in contrast to the classical case where width 5 is necessary unless NC1 = ACC. This separates width-2 quantum programs from width-2 doubly stochastic programs as we show the latter cannot compute the middle bit of multiplication. Finally, we show that bounded-width quantum and stochastic programs can be simulated by classical programs of larger but bounded width, and thus are in NC 1.© 2002 Springer-Verlag Berlin Heidelberg. |
|
dc.relation.ispartofseries |
Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) |
|
dc.title |
Quantum and stochastic branching programs of bounded width |
|
dc.type |
Conference Paper |
|
dc.relation.ispartofseries-volume |
2380 LNCS |
|
dc.collection |
Публикации сотрудников КФУ |
|
dc.relation.startpage |
343 |
|
dc.source.id |
SCOPUS03029743-2002-2380-SID84869186284 |
|