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Quantum theory, the ChurchTuring principle and the universal quantum computer
, 1985
"... computer ..."
Universal Quantum Computing with Spin and
"... Abstract. We investigate a twoelectron double quantum dot with both spin and valley degrees of freedom as they occur in graphene, carbon nanotubes, or silicon, and regard the 16dimensional space with one electron per dot as a fourqubit logic space. In the spinonly case, it is well known that the ..."
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that the exchange coupling between the dots combined with arbitrary singlequbit operations is sufficient for universal quantum computation. The presence of the valley degeneracy in the electronic band structure alters the form of the exchange coupling and in general leads to spinvalley entanglement. Here, we show
UNIVERSAL QUANTUM COMPUTATION WITH SHUTTER LOGIC.
, 2006
"... We show that universal quantum logic can be achieved using only linear optics and a quantum shutter device. With these elements, we design a quantum memory for any number of qubits and a CNOT gate which are the basis of a universal quantum computer. An interactionfree model for a quantum shutter is ..."
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We show that universal quantum logic can be achieved using only linear optics and a quantum shutter device. With these elements, we design a quantum memory for any number of qubits and a CNOT gate which are the basis of a universal quantum computer. An interactionfree model for a quantum shutter
Is There a Universal Quantum Computer?
, 1998
"... In classical computation, any recursive function can be computed by a universal Turing machine, and the program is independent of the value of the variable. Generalizing this universality to quantum computation, one anticipates that there is a universal quantum Turing machine which can perform any d ..."
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In classical computation, any recursive function can be computed by a universal Turing machine, and the program is independent of the value of the variable. Generalizing this universality to quantum computation, one anticipates that there is a universal quantum Turing machine which can perform any
Remarks on universal quantum computer
 Physics Letters A
, 2002
"... According to Deutsch, a universal quantum Turing machine (UQTM) is able to perform, in repeating a fixed unitary transformation on the total system, an arbitrary unitary transformation on an arbitrary data state, by including a program as another part of the input state. We note that if such a UQTM ..."
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According to Deutsch, a universal quantum Turing machine (UQTM) is able to perform, in repeating a fixed unitary transformation on the total system, an arbitrary unitary transformation on an arbitrary data state, by including a program as another part of the input state. We note that if such a UQTM
Quantum Nondemolition Monitoring of Universal Quantum Computers
 Physical Review Letters
, 1998
"... It is proved that the halt scheme for a universal quantum computer originally proposed by Deutsch works without spoiling the computation. The “conflict ” pointed out recently by Myers in the defintion of a universal quantum computer is shown to be only apparent. In the context of quantum nondemoliti ..."
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Cited by 11 (0 self)
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It is proved that the halt scheme for a universal quantum computer originally proposed by Deutsch works without spoiling the computation. The “conflict ” pointed out recently by Myers in the defintion of a universal quantum computer is shown to be only apparent. In the context of quantum
Universal Quantum Computation with the Exchange Interaction
 Nature
"... Experimental implementations of quantum computer architectures are now being investigated in many different physical settings. The full set of requirements that must be met to make quantum computing a reality in the laboratory [1] is daunting, involving capabilities well beyond the present state of ..."
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Cited by 38 (6 self)
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Experimental implementations of quantum computer architectures are now being investigated in many different physical settings. The full set of requirements that must be met to make quantum computing a reality in the laboratory [1] is daunting, involving capabilities well beyond the present state
Synchronizing Quantum Paths of a Universal Quantum Computer
, 1997
"... For a universal quantum computer, different quantum paths should start and complete every stage of computation simultaneously so that the programs are effective. A special case that all quantum paths arrive in the output state simultaneously is necessary to halting problem. A scheme synchronizing al ..."
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For a universal quantum computer, different quantum paths should start and complete every stage of computation simultaneously so that the programs are effective. A special case that all quantum paths arrive in the output state simultaneously is necessary to halting problem. A scheme synchronizing
Novel Scheme for Universal Quantum Computation
, 1999
"... A scenario for realization of a quantum computer is proposed consisting of spatially distributed qbits fabricated in a host structure where nuclear spinspin coupling is mediated by laser pulse controlled electronnuclear transferred hyperfine (superhyperfine) Fermi contact interaction. Operations ..."
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illustrating entanglement, nonlocality, and quantum control logic operations are presented and discussed. The notion of universality of quantum computation is introduced and the irreducible conditions are presented. It is demonstrated that the proposed generic scenario for realization of a quantum computer
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