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Topic: BQP

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	BQP -- Facts, Info, and Encyclopedia article (Site not responding. Last check: 2007-11-03)
		BQP, in (Click link for more info and facts about computational complexity theory) computational complexity theory, stands for "Bounded error, Quantum, (Click link for more info and facts about Polynomial time) Polynomial time".
		The idea is that there is a small (Click link for more info and facts about probability of error) probability of error, but running the algorithm many times produces an (Click link for more info and facts about exponentially-small) exponentially-small chance that the majority of the runs are wrong.
		BQP contains (The 16th letter of the Roman alphabet) P and (Click link for more info and facts about BPP) BPP and is contained in (Click link for more info and facts about PP) PP and (Click link for more info and facts about PSPACE) PSPACE.
	www.absoluteastronomy.com /encyclopedia/b/bq/bqp2.htm (413 words)

	QTMs -- Quantum Complexity Theory (Site not responding. Last check: 2007-11-03)
		BQP is the quantum analog of this class.
		It is clear that EQP is a subset of, or equal to BQP, since a string that is accepted with certainty, that is, with probability 1, it is certainly accepted within a 2/3 probability.
		BPP is a subset of, or equal to, BQP.
	www.cs.caltech.edu /~hayh/cs20/report/complexity.html (598 words)

	Silvaco - Products - Quantum
		The BQP curve can be made even closer to the S-P curve by a better choice of parameters for the BQP model.
		The BQP and S-P values are similar, and can be made closer to the S-P curve by a better choice of parameters for the BQP model.
		In this case two BQP results are shown to illustrate that by choosing the parameters carefully one can get results virtually the same as the Schrodinger-Poisson ones.
	www.silvaco.com /products/vwf/atlas/quantum3d/quantum_br.html (1380 words)

	Quantum Computability and Complexity and the Limits of Quantum Computation (Site not responding. Last check: 2007-11-03)
		While there are problems such as factoring and computing a discrete log that are in BQP but not known to be in BPP, no one has actually proven that these problems are not in BPP.
		Thus BQP contains all of P and BPP, and potentially some problems in NP but probably none that are NP-complete, and perhaps some problems in PSPACE that are not in NP [13].
		BQP for which the transition amplitudes can be computed exactly in polynomial time.
	www.cs.berkeley.edu /~kamil/quantum/qc4 (4732 words)

	Contact Details, Terms & Conditions (Site not responding. Last check: 2007-11-03)
		If there are changes to the BQP Participant’s product or the 4-State Barcode Acceptance Criteria, Australia Post may require the BQP Participant to reapply for a Barcode Content - Statement of Capability.
		The BQP Participant acknowledges that Australia Post provides no warranty with respect to the accuracy or operation of the BQP Testing Material or to them being virus free.
		The BQP Participant warrants that it does not rely on the BQP Testing Material being complete or error free.
	www.auspost.com.au /BCP/0,1080,CH2204~MO19,00.html (650 words)

	Complexity Zoo - Qwiki
		One can equivalently define BQP as the class of decision problems solvable by a uniform family of polynomial-size quantum circuits, with at most 1/3 probability of error [Yao93].
		BQP is often identified as the class of feasible problems for quantum computers.
		Defined in [BV97], where it is also shown that BQP contains BPP and is contained in P with a #P oracle.
	qwiki.caltech.edu /wiki/Complexity_Zoo (6311 words)

	[No title] (Site not responding. Last check: 2007-11-03)
		It is conceivable, but still not demonstrated, that problems solvable in probabilistic polynomial time by a quantum computer (denote this class by BQP) are solvable in practice by some physical implementation of the model.
		The computation of a quantum machine is similar to the computation of a probabilistic Turing machine, with the difference that to any state is associated an ``amplitude'' rather than a probability.
		We prove that BQP is contained in AM; since BQP is closed under complementation, it follows that BQP is also contained in coAM.
	theory.lcs.mit.edu /theory-seminars/danny/hoax.txt (338 words)

	Quantum Computability
		On the other hand, if quantum Turing machines are allowed unrestricted amplitudes (i.e., arbitrary complex amplitudes), then the corresponding BQP class has uncountable cardinality and contains sets of all Turing degrees.
		Moreover, with unrestricted amplitudes, BQP is not equal to EQP.
		It is shown that when quantum Turing machines are restricted to have transition amplitudes which are algebraic numbers, BQP, EQP, and nondeterministic quantum polynomial time (NQP) are all contained in PP, hence in ${\rm P}^{\#{\rm P}}$ and PSPACE.
	epubs.siam.org /sam-bin/dbq/article/29363 (264 words)

	BQP - Unipedia (Site not responding. Last check: 2007-11-03)
		This makes BQP the primary class of practical quantum algorithms that is studied.
		Higher-Level Thinking Questions : Personal and Social Skills (Bqp).
		Books : Higher-Level Thinking Questions : Personal and Social Skills (Bqp).
	www.unipedia.info /BQP.html (367 words)

	Ten Semi-Grand Challenges for Quantum Computing Theory (Site not responding. Last check: 2007-11-03)
		There's an oracle relative to which BQP is not in MA, but we still have no oracle relative to which BQP is not in AM.
		At least in the unrelativized world, I consider it entirely possible that BQP is contained in AM intersect coAM (and thus in NP intersect coNP under a derandomization assumption).
		We can address this question by studying two complexity classes: QMA (Quantum Merlin-Arthur), which is like NP except that the verification algorithm is quantum and the yes-witnesses are quantum states; and BQP/qpoly, or BQP with a polynomial-size quantum advice state that depends only on the input length.
	www.scottaaronson.com /writings/qchallenge.html (1308 words)

	Complexity Limitations on Quantum Computation - Fortnow, Rogers (ResearchIndex) (Site not responding. Last check: 2007-11-03)
		Abstract: We use the powerful tools of counting complexity and generic oracles to help understand the limitations of the complexity of quantum computation.
		We show several results for the probabilistic quantum class BQP.
		--- BQP is low for PP, i.e., PP BQP = PP.
	citeseer.ist.psu.edu /fortnow97complexity.html (378 words)

	Barcode Content
		Overview The Barcode Quality Program (BQP) offers a Barcode Content Statement of Capability process to test that the information contained within the barcode has been correctly generated from the DPID® (Delivery Point Identifier), customer information,
		The Barcode Quality Program (BQP) offers a Barcode Content Statement of Capability process to test that the information contained within the barcode has been correctly generated from the DPID® (Delivery Point Identifier), customer information, and other input parameters.
		The diagram below shows the steps associated with obtaining the BQP Barcode Content Statement of Capability.
	www.auspost.com.au /BCP/0,1080,CH2201~MO19,00.html (138 words)

	Bluetooth™ Qualification Program Overview (Site not responding. Last check: 2007-11-03)
		In this article, derived from the author’s book Bluetooth Revealed, Second Edition, Bluetooth wireless communication authority Brent A. Miller presents an overview of the Bluetooth qualification program (BQP).
		The BQP was recently instituted by the Bluetooth Special Interest Group (SIG) to help ensure that products bearing the Bluetooth logo conform to the Bluetooth specification.
		Bluetooth Revealed: The Insider's Guide to an Open Specification for Global Wireless Communications, 2nd Edition
	www.informit.com /articles/article.asp?p=24244&seqNum=4 (270 words)

	Greek "BQP BETA THETA PI" 7/8" Pendant - Sterling Silver Jewelry
		Greek "BQP BETA THETA PI" 7/8" Pendant - Sterling Silver Jewelry
		Click on the image to see more detail
		We will never give, lease or sell your personal information.
	www.onlinesports.com /pages/I,LGA-GRKBQP-S.html (282 words)

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