Although quantum computers promise significant advantages, the complexity of quantum algorithms r... more Although quantum computers promise significant advantages, the complexity of quantum algorithms remains a major technological obstacle. We have developed and demonstrated an architecture-independent technique that simplifies adding control qubits to arbitrary quantum operations—a requirement in many quantum algorithms, simulations and metrology.
Abstract Quantum technologies based on photons will likely require integrated optics architecture... more Abstract Quantum technologies based on photons will likely require integrated optics architectures for improved performance, miniaturization and scalability. We demonstrate high-fidelity silica-on-silicon integrated optical realizations of key quantum photonic circuits and the first integrated quantum algorithm.
Alberto Politi, Jonathan CF Matthews, Anthony Laing, Alberto Peruzzo, Pruet Kalasuwan, Mian Zhang... more Alberto Politi, Jonathan CF Matthews, Anthony Laing, Alberto Peruzzo, Pruet Kalasuwan, Mian Zhang, Xiao-Qi Zhou, Maria Rodas, Martin J. Cryan, John G. Rarity, Andre Stefanov, Siyuan Yu, Mark G. Thompson and Jeremy L. O'Brien. Centre for Quantum Photonics, HH Wills Physics Laboratory & Department of Electrical and Electronic Engineering, University of Bristol, Merchant Venturers Building, Woodland Road, Bristol, BS8 1UB, UK, Email: Jeremy.OBrien@bristol.ac .
Quantum information science has shown that harnessing quantum mechanical effects can dramatically... more Quantum information science has shown that harnessing quantum mechanical effects can dramatically improve performance for certain tasks in communication, computation and measurement. Of the various physical systems being pursued, single particles of lightphotons-are often the logical choice. In addition to single photon sources and detectors, photonic quantum technologies will rely on sophisticated optical circuits involving high-visibility classical and quantum interference.
Abstract: Quantum algorithms are able to solve particular problems exponentially faster than conv... more Abstract: Quantum algorithms are able to solve particular problems exponentially faster than conventional algorithms, when implemented on a quantum computer. However, all demonstrations to date have required already knowing the answer to construct the algorithm. We have implemented the complete quantum phase estimation algorithm for a single qubit unitary in which the answer is calculated by the algorithm.
Although quantum computers promise significant advantages, the complexity of quantum algorithms r... more Although quantum computers promise significant advantages, the complexity of quantum algorithms remains a major technological obstacle. We have developed and demonstrated an architecture-independent technique that simplifies adding control qubits to arbitrary quantum operations—a requirement in many quantum algorithms, simulations and metrology.
Abstract Quantum technologies based on photons will likely require integrated optics architecture... more Abstract Quantum technologies based on photons will likely require integrated optics architectures for improved performance, miniaturization and scalability. We demonstrate high-fidelity silica-on-silicon integrated optical realizations of key quantum photonic circuits and the first integrated quantum algorithm.
Alberto Politi, Jonathan CF Matthews, Anthony Laing, Alberto Peruzzo, Pruet Kalasuwan, Mian Zhang... more Alberto Politi, Jonathan CF Matthews, Anthony Laing, Alberto Peruzzo, Pruet Kalasuwan, Mian Zhang, Xiao-Qi Zhou, Maria Rodas, Martin J. Cryan, John G. Rarity, Andre Stefanov, Siyuan Yu, Mark G. Thompson and Jeremy L. O'Brien. Centre for Quantum Photonics, HH Wills Physics Laboratory & Department of Electrical and Electronic Engineering, University of Bristol, Merchant Venturers Building, Woodland Road, Bristol, BS8 1UB, UK, Email: Jeremy.OBrien@bristol.ac .
Quantum information science has shown that harnessing quantum mechanical effects can dramatically... more Quantum information science has shown that harnessing quantum mechanical effects can dramatically improve performance for certain tasks in communication, computation and measurement. Of the various physical systems being pursued, single particles of lightphotons-are often the logical choice. In addition to single photon sources and detectors, photonic quantum technologies will rely on sophisticated optical circuits involving high-visibility classical and quantum interference.
Abstract: Quantum algorithms are able to solve particular problems exponentially faster than conv... more Abstract: Quantum algorithms are able to solve particular problems exponentially faster than conventional algorithms, when implemented on a quantum computer. However, all demonstrations to date have required already knowing the answer to construct the algorithm. We have implemented the complete quantum phase estimation algorithm for a single qubit unitary in which the answer is calculated by the algorithm.
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