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of 71
pro vyhledávání: '"C. Allcock"'
Autor:
R T Sutherland, R Srinivas, S C Burd, D Leibfried, A C Wilson, D J Wineland, D T C Allcock, D H Slichter, S B Libby
Publikováno v:
New Journal of Physics, Vol 21, Iss 3, p 033033 (2019)
We present a general theory for laser-free entangling gates with trapped-ion hyperfine qubits, using either static or oscillating magnetic-field gradients combined with a pair of uniform microwave fields symmetrically detuned about the qubit frequenc
Externí odkaz:
https://doaj.org/article/55378a55e53747af8eb9f23165916044
Autor:
Sean J. Brudney, Andrew A. Lesak, Jeremy M. Metzner, Isam D. Moore, Alexander D. Quinn, David T. C. Allcock
Publikováno v:
Quantum 2.0 Conference and Exhibition.
We evaluate Light Induced Atomic Desorption from various substrates as a method of producing high-density room temperature calcium atoms for rapid, low complexity, loading of trapped-ion quantum computers and atomic clocks.
Autor:
A. D. Quinn, I. D. Moore, W. C. Campbell, E. R. Hudson, S. J. Brudney, A. A. Lesak, J. M. Metzner, D. J. Wineland, D. T. C. Allcock
Publikováno v:
Quantum 2.0 Conference and Exhibition.
We describe a new model for two-photon stimulated Raman transitions and our efforts to test this model in 40Ca+ions. Compared to previous models, our model predicts lower scattering at certain Raman beam detunings.
Autor:
I. D. Moore, W. C. Campbell, E. R. Hudson, M. J. Boguslawski, D. J. Wineland, D. T. C. Allcock
We study photon scattering errors in stimulated Raman driven quantum logic gates. For certain parameter regimes, we find that previous, simplified models of the process significantly overestimate the gate error rate due to photon scattering. This ove
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ba00f73b728875c33cc3038c9c278884
Publikováno v:
Physical Review A. 104
We report precision measurements of the nuclear magnetic moment of $^{43}\mathrm{Ca}^{+}$, made by microwave spectroscopy of the $4s\phantom{\rule{0.16em}{0ex}}^{2}S_{1/2}|F=4,\phantom{\rule{0.28em}{0ex}}M=0\ensuremath{\rangle}\ensuremath{\rightarrow
Autor:
R, Srinivas, S C, Burd, H M, Knaack, R T, Sutherland, A, Kwiatkowski, S, Glancy, E, Knill, D J, Wineland, D, Leibfried, A C, Wilson, D T C, Allcock, D H, Slichter
Publikováno v:
Nature. 597(7875)
Universal control of multiple qubits-the ability to entangle qubits and to perform arbitrary individual qubit operations
Autor:
D T C Allcock, T P Harty, M A Sepiol, H A Janacek, C J Ballance, A M Steane, D M Lucas, D N Stacey
Publikováno v:
New Journal of Physics, Vol 18, Iss 2, p 023043 (2016)
We demonstrate simple and robust methods for Doppler cooling and obtaining high fluorescence from trapped ^43 Ca ^+ ions at a magnetic field of 146 Gauss. This field gives access to a magnetic-field-independent ‘atomic clock’ qubit transition wit
Externí odkaz:
https://doaj.org/article/b5887cb8f4a344ad8938b02ec33eff83
Akademický článek
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Autor:
Ruth Graham, Charlotte Eglinton, Swapna Kunhunny, J Banns, Alison K Wright, Sunil Munshi, C Khuoge, Beverley McClelland, A Benford, Jean Buxton, Maia Beridze, K Deighton, Neha Chopra, Nichola Motherwell, Emily C. O'Brien, Sonia S. Anand, Anand Dixit, Una Poultney, N Beridze, Jessica Beavan, K Dizayee, Thompson G. Robinson, Deborah Howcroft, Alison Sarah rachel Mcloughlin, A Kenton, Derek Esson, A Tittle, L Matter, Kerstin Knops, C Hubbuck, Kath Chapman, R Rangasamay, Ranjan Sanyal, Sarah Lewis, Alpha Anthony, Sarah Board, Janice Irvine, Anna Verrion, Katherine Whittamore, N Khizanishvili, L O'Shea, Lisa Shaw, K Ayes, Tracey Dobson, N Akiashvili, Gill Rogers, Jenny Peters, Alda Remegoso, S S Hansen, James A. White, T Attygalle, Rosalind Brown, Irene Martin, Manesh R. Patel, D O'Kane, Stuart J. Pocock, Khalid Rashed, G Spurling, Sharon Tysoe, Frances Harrington, Margo Henry, Rowilson Jarapa, Julia Hindle, K A Kay, Carinna Vickers, S Duty, Angela Bowring, David Eveson, Saul Sundayi, Mary Kambafwile, Rashmi Kumar, Jack Roffe, Marilyn James, Natalie Temple, R Oliver, Christine Kelly, M Niemierko, J Chembala, S Jones, M Dent, K Chatterjee, S Atkinson, J Tomlinson, S Norman, E Cattermole, P Daboo, Nicola Gilzeane, Anne Hardwick, Pietro Cariga, C Rankin, David A. Wood, Lelia Duley, John Bamford, L Holford, J Good, C Ambulo, S Gomm, Girish Muddegowda, Fiona Wright, M Alao, L Sztriha, Maite D. Rodriguez, Christine Dickson, S Merotra, Helen Bearne, Ann Needle, Emma Mckenzie, Olga Balazikova, Emily Osborne, A Lankester, Rod S Taylor, Pauline Fitzell, Bernard Esisi, E Young, Richard Donnelly, Anu Joyson, Debbie Morgan, Fran Watson, Caroline Mcinnes, C Padilla-Harris, Stephanie McCann, T Ajao, Suzanne Lucas, Inez Wynter, Barbara Longland, Don Sims, Gavin Bateman, Anthony Hemsley, Vera Cvoro, Fiona Kennedy, Peter Langhorne, Adrian Butler, P Jacob, Barry Moynihan, Amit K. Mistri, W Sunman, Hannah Beadle, Polly Scutt, M Garside, Glyn Fletcher, Deborah Walstow, L Ryan, Michelle Fawcett, D Wilkinson, E Gibson, O Orugun, Malcolm R. Macleod, Philip M.W. Bath, Elio Giallombardo, T Kherkheulidze, Lourda Kerin, Clare Doyle, Brigid Hairsine, N Kakabadze, B Wadams, Enas Lawrence, Dinesh Chadha, I Memon, Cheryl L. Perkins, Victoria Sutton, C.B. Patel, A Ravindrane, K Javaid, Mahmud Sajid, T Tsanava, Y Duodu, Timothy J. England, Geoffrey A. Rose, Sheila Nyabadza, Louisa M. Christensen, M Bajoriene, F Faola, J Kok, C Vernon, Aravindakshan Manoj, E Horsley, T Gordon, Linda Cowie, S Hurdowar, D Sandler, Temi Adedoyin, Mandy Couser, C Jenkins, C Pringle, Paula Lopez, Vicky Taylor, James Cunningham, Gillian Courtauld, S Maheswaran, H Rehman, Christine Roffe, M Sein, Carla Richardson, John B. Davis, Nenette Abano, Racquel Carpio, Sheila Mashate, P Christian, Lynn Dixon, Dulka Manawadu, Jeanette Grocott, Peter Owusu-Agyei, P Farren, F K Chan, Komal Ali, Annemarei Ranta, Judith Clarke, Dean Waugh, Stan Heptinstall, M Reader, Nikola Sprigg, John F. Corrigan, Caroline Roughan, F Brodie, Paula Harman, P Webster, Kenneth Smith, Julie Reddan, Angela Willberry, Peter Howard, Kay Finney, S Buddha, C Hewitt, M Zaidi, Tracy Marsden, Heather Gow, Robert A. Dineen, Kimberley Netherton, Kashif Musarrat, Emma Barbon, V Riddell, G Storey, Ahamad Hassan, O Adegbaju, S Wong, Bethan Charles, Bindu Gregary, Rhys Williams, M G Metiu, Nilofer Dayal, C Lawlor, Kirsten E Anderson, R Icart Palau, N Khanom, C Stevenson, Prabel Datta, Betty Mokoena, Kelly Chan, Amanda Hedstrom, Sonia Raj, Y Gruenbeck, D Dellafera, Georgina Butt, A Peacocke, James Okwera, L Mokoena, Holly Maguire, Mohana Maddula, C Bailey, Ian Shread, LáShauntá M. Glover, Elizabeth Keeling, Mari Smith, Jane Powell, A Tevdoradze, Christopher Price, Hannah Rudenko, K Gill, Laura Howaniec, P Lingwood, Katherine Marks, Ivan Iniesta, F Barrett, Barbara Madigan, Emery N. Brown, Katie Flaherty, Gail Hann, Mark Barber, Kelley Storey, Aparna Pusalkar, Jason P. Appleton, Joanne Hiden, R Jolly, Hedley C. A. Emsley, J Chambers, Christina Kruuse, Mairead Osborn, P Lai, Tracy Fuller, David G. Bruce, Robert Namushi, Martin Cooper, Peter Murphy, Naomi Jeyaraj, Hayley Kingwell, A Nair, Robert S.M. Davies, Katrina McCormick, Rachel L. Lakey, Sharon Dealing, F Leslie, Peter Wilkinson, Amitava Banerjee, Penelope Cox, Janice E. O’Connell, N Sikondari, Sandra Leason, Lisa J Woodhouse, Judith Bell, Puneet Dangri, Donna Butler, Judith Dube, Rachel Gascoyne, Amberly Brigden, Debs Kelly, Renuka Erande, Kirsty Harkness, Sarah Trippier, Kirsten Harvey, Georgina Ayres, R Rowland-Axe, E Campbell, Sue Lyjko, Sylvia Szabo, David Mangion, Suzanne Ragab, C Hilaire, Alan A Montgomery, Dawn Tomlin, John Paterson, K Muhidden, Grace Auld, C Keaveney, Hannah Crowther, Lisa Hyatt, Louise E. Jackson, K Castro, Khaled Elfandi, H Russell, S Tennant, Ozlem Redjep, Tim Cassidy, Linda Y Johnson, Amulya Misra, E Khoromana, Catherine Ovington, Stuart Maguire, S Khan, Zoe Mellor, Michael Funnell, Hugh S. Markus, Emma Richards, I Toidze, Colin Smith, R Sivakumar, Janet Wilson, Amina Ahmed, A Mohd Nor, A Barkat, Line Bentsen, K Whysall, Carol L Clarke, N Sengupta, Meena Srinivasan, Balakrishna Kumar, Mgg Soliman, A Thomson, Adrian Barry, Abul Azim, Ed Gamble, H Eccleson, Kelly Marie Shaw, Christine Schofield, Linetty Makawa, Carole Hays, David Hargroves, Jordi Margalef, S Butler, H Webb, Carol Denniss, Samantha Stafford, Faye Shelton, D Forrest, Amanda Buck, Tarn Nozedar, Indira Natarajan, Jane Perez, Susanna R. Stevens, Denise Button, Mary Johnes, Samantha Keenan, Olivia C. Geraghty, Eva Beranova, Emma Jinks, S Hassan, Caroline McGhee, Nicola Persad, Gunaratnam Gunathilagan, Clare Buckley, Jennifer Mitchell, Mike Clarke, Mathew Burn, B Bhaskaran, D Hayward, Lucy Belle Guthrie, S Meenakshisundaram, Anushka Warusevitane, O Speirs, J O'Callaghan, Sudipto Ghosh, Peter Wilding, Helen Cochrane, Susan Clayton, Mandy Doherty, Fiona Price, L Montague, Valerie Hogg, S Arif, Beth Hazel, Margaret Ball, S Johnson-Holland, S Booth, N Rands, Dionne Hove, Teresa Thompson, C Krarup Hansen, Lisa Manning, Andrew Smith, Jo Howe, Jill Greig, Kailash Krishnan, Caroline Watchurst, L Finlay, Sandra Nelson, Toby Black, S Tilby, Zin Naing, D Morse, David Broughton, K Preece, M Platton, M Siddiqui, Angela Dodd, Catrin Blank, Maria Bokhari, Jacqueline Furnace, F Hammonds, Helen Guy, A Lehman, J Hunt, S Windebank, Becky Jupp, K Fotherby, Ruth Bellfield, P Wanklyn, D Hilton, Amy Steele, S Mahmood, N Lobjanidze, Sarah Finlay, L Hunt, M Krasinska-Chavez, Gemma Grimwood, H H Jensen, J. Duignan, Jane Gaylard, Asaipillai Asokanathan, Joanna O'Reilly, J Kessell, Diane Havard, T Fluskey, L Lee-Carbon, Graham Venables, Margi Godfrey, L Boxall, C Douglass, Emelda Veraque, Elaine Amis, M Chowdhury, Rekha Keshvara, Adrian Blight, G Thomas, Marc Randall, S Stoddart, Paul Guyler, Rita Ghatala, Janet T Scott, Kathy J. Jenkins, Sarah Ross, John Aeron-Thomas, C Allcock, J Goodsell, Ifan Jones, D Kakabadze, T T Thomsen, V Petrovic, I. Watson, C Athulathmudali, Hanne Christensen, Susan Crawford, Christine Kamara, James McIlmoyle, Stephen Woodward, Christine McAlpine, Emma Temlett, Gwendoline Wilkes, Benjamin Hyams, L Mills, S Brixey, Raj Shekhar, P Findlay
Summary Background Intensive antiplatelet therapy with three agents might be more effective than guideline treatment for preventing recurrent events in patients with acute cerebral ischaemia. We aimed to compare the safety and efficacy of intensive a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cc829b4ca2a292a8428e2c93849586c4
High-fidelity spatial and polarization addressing of Ca+43 qubits using near-field microwave control
Autor:
C. J. Ballance, Norbert M. Linke, M. A. Sepiol, D. N. Stacey, D. T. C. Allcock, D. P. L. Aude Craik, T. P. Harty, J. F. Goodwin, D. M. Lucas, Andrew M. Steane
Publikováno v:
Physical Review A. 95
Individual addressing of qubits is essential for scalable quantum computation. Spatial addressing allows unlimited numbers of qubits to share the same frequency, while enabling arbitrary parallel operations. We demonstrate addressing of long-lived $^