Helios: A 98-qubit trapped-ion quantum computer
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arXiv
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| Natura: | Preprint |
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2025
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| author | Ransford, Anthony Allman, M. S. Arkinstall, Jake Campora III, J. P. Cooper, Samuel F. Delaney, Robert D. Dreiling, Joan M. Estey, Brian Figgatt, Caroline Hall, Alex Husain, Ali A. Isanaka, Akhil Kennedy, Colin J. Kotibhaskar, Nikhil Madjarov, Ivaylo S. Mayer, Karl Milne, Alistair R. Park, Annie J. Reed, Adam P. Ancona, Riley Andersen, Molly P. Andres-Martinez, Pablo Angenent, Will Argueta, Liz Arkin, Benjamin Ascarrunz, Leonardo Baker, William Barnes, Corey Bartolotta, John Berg, Jordan Besand, Ryan Bjork, Bryce Blain, Matt Blanchard, Paul Blume-Kohout, Robin Bohn, Matt Borgna, Agustin Botamanenko, Daniel Y. Boutelle, Robert Brown, Natalie Buckingham, Grant T. Burdick, Nathaniel Q. Burton, William Cody Carey, Varis Carron, Christopher J. Chambers, Joe Children, John Colussi, Victor E. Crepinsek, Steven Cureton, Andrew Davies, Joe Davis, Daniel DeCross, Matthew Deen, David Delaney, Conor DelVento, Davide DeSalvo, B. J. Dominy, Jason Duncan, Ross Eccles, Vanya Edgington, Alec Erickson, Neal Erickson, Stephen Ertsgaard, Christopher T. Evans, Bruce Evans, Tyler Fabrikant, Maya I. Fischer, Andrew Foltz, Cameron Foss-Feig, Michael Francois, David Freyberg, Brad Gao, Charles Garay, Robert Garvin, Jane Gaudiosi, David M. Gilbreth, Christopher N. Giles, Josh Glynn, Erin Graves, Jeff Hansen, Azure Hayes, David Heidemann, Lukas Higashi, Bob Hilbun, Tyler Hines, Jordan Hlavaty, Ariana Hoffman, Kyle Hoffman, Ian M. Holliman, Craig Hooper, Isobel Horning, Bob Hostetter, James Hothem, Daniel Houlton, Jack Hout, Jared Hutson, Ross Jacobs, Ryan T. Jacobs, Trent Johannsen, Melf Johansen, Jacob Jones, Loren Julian, Sydney Jung, Ryan Keay, Aidan Klein, Todd Koch, Mark Kondo, Ryo Kong, Chang Kosto, Asa Lawrence, Alan Liefer, David Lollie, Michelle Lucchetti, Dominic Lysne, Nathan K. Lytle, Christian MacPherson, Callum Malm, Andrew Mather, Spencer Mathewson, Brian Maxwell, Daniel McCaffrey, Lauren McDougall, Hannah Mendoza, Robin Mills, Michael Morrison, Richard Narmour, Louis Nguyen, Nhung Nugent, Lora Olson, Scott Ouellette, Daniel Parks, Jeremy Peters, Zach Petricka, Jessie Pino, Juan M. Polito, Frank Preidl, Matthias Price, Gabriel Proctor, Timothy Pugh, McKinley Ratcliff, Noah Raymondson, Daisy Rhodes, Peter Roman, Conrad Roy, Craig Ryan-Anderson, Ciaran Sanchez, Fernando Betanzo Sangiolo, George Sawadski, Tatiana Schaffer, Andrew Schow, Peter Sedlacek, Jon Semenenko, Henry Shevchuk, Peter Shore, Susan Siegfried, Peter Singhal, Kartik Sivarajah, Seyon Skripka, Thomas Sletten, Lucas Spaun, Ben Sprenkle, R. Tucker Stoufer, Paul Tader, Mariel Taylor, Stephen F. Thompson, Travis H. Tobey, Raanan Tran, Anh Tran, Tam Vittorini, Grahame Volin, Curtis Walker, Jim White, Sam Wilson, Douglas Wolf, Quinn Wringe, Chester Young, Kevin Zheng, Jian Zuraski, Kristen Baldwin, Charles H. Chernoguzov, Alex Gaebler, John P. Sanders, Steven J. Neyenhuis, Brian Stutz, Russell Bohnet, Justin G. |
| author_facet | Ransford, Anthony Allman, M. S. Arkinstall, Jake Campora III, J. P. Cooper, Samuel F. Delaney, Robert D. Dreiling, Joan M. Estey, Brian Figgatt, Caroline Hall, Alex Husain, Ali A. Isanaka, Akhil Kennedy, Colin J. Kotibhaskar, Nikhil Madjarov, Ivaylo S. Mayer, Karl Milne, Alistair R. Park, Annie J. Reed, Adam P. Ancona, Riley Andersen, Molly P. Andres-Martinez, Pablo Angenent, Will Argueta, Liz Arkin, Benjamin Ascarrunz, Leonardo Baker, William Barnes, Corey Bartolotta, John Berg, Jordan Besand, Ryan Bjork, Bryce Blain, Matt Blanchard, Paul Blume-Kohout, Robin Bohn, Matt Borgna, Agustin Botamanenko, Daniel Y. Boutelle, Robert Brown, Natalie Buckingham, Grant T. Burdick, Nathaniel Q. Burton, William Cody Carey, Varis Carron, Christopher J. Chambers, Joe Children, John Colussi, Victor E. Crepinsek, Steven Cureton, Andrew Davies, Joe Davis, Daniel DeCross, Matthew Deen, David Delaney, Conor DelVento, Davide DeSalvo, B. J. Dominy, Jason Duncan, Ross Eccles, Vanya Edgington, Alec Erickson, Neal Erickson, Stephen Ertsgaard, Christopher T. Evans, Bruce Evans, Tyler Fabrikant, Maya I. Fischer, Andrew Foltz, Cameron Foss-Feig, Michael Francois, David Freyberg, Brad Gao, Charles Garay, Robert Garvin, Jane Gaudiosi, David M. Gilbreth, Christopher N. Giles, Josh Glynn, Erin Graves, Jeff Hansen, Azure Hayes, David Heidemann, Lukas Higashi, Bob Hilbun, Tyler Hines, Jordan Hlavaty, Ariana Hoffman, Kyle Hoffman, Ian M. Holliman, Craig Hooper, Isobel Horning, Bob Hostetter, James Hothem, Daniel Houlton, Jack Hout, Jared Hutson, Ross Jacobs, Ryan T. Jacobs, Trent Johannsen, Melf Johansen, Jacob Jones, Loren Julian, Sydney Jung, Ryan Keay, Aidan Klein, Todd Koch, Mark Kondo, Ryo Kong, Chang Kosto, Asa Lawrence, Alan Liefer, David Lollie, Michelle Lucchetti, Dominic Lysne, Nathan K. Lytle, Christian MacPherson, Callum Malm, Andrew Mather, Spencer Mathewson, Brian Maxwell, Daniel McCaffrey, Lauren McDougall, Hannah Mendoza, Robin Mills, Michael Morrison, Richard Narmour, Louis Nguyen, Nhung Nugent, Lora Olson, Scott Ouellette, Daniel Parks, Jeremy Peters, Zach Petricka, Jessie Pino, Juan M. Polito, Frank Preidl, Matthias Price, Gabriel Proctor, Timothy Pugh, McKinley Ratcliff, Noah Raymondson, Daisy Rhodes, Peter Roman, Conrad Roy, Craig Ryan-Anderson, Ciaran Sanchez, Fernando Betanzo Sangiolo, George Sawadski, Tatiana Schaffer, Andrew Schow, Peter Sedlacek, Jon Semenenko, Henry Shevchuk, Peter Shore, Susan Siegfried, Peter Singhal, Kartik Sivarajah, Seyon Skripka, Thomas Sletten, Lucas Spaun, Ben Sprenkle, R. Tucker Stoufer, Paul Tader, Mariel Taylor, Stephen F. Thompson, Travis H. Tobey, Raanan Tran, Anh Tran, Tam Vittorini, Grahame Volin, Curtis Walker, Jim White, Sam Wilson, Douglas Wolf, Quinn Wringe, Chester Young, Kevin Zheng, Jian Zuraski, Kristen Baldwin, Charles H. Chernoguzov, Alex Gaebler, John P. Sanders, Steven J. Neyenhuis, Brian Stutz, Russell Bohnet, Justin G. |
| contents | We report on Quantinuum Helios, a 98-qubit trapped-ion quantum processor based on the quantum charge-coupled device (QCCD) architecture. Helios features $^{137}$Ba$^{+}$ hyperfine qubits, all-to-all connectivity enabled by a rotatable ion storage ring connecting two quantum operation regions by a junction, speed improvements from parallelized operations, and a new software stack with real-time compilation of dynamic programs. Averaged over all operational zones in the system, we achieve average infidelities of $2.5(1)\times10^{-5}$ for single-qubit gates, $7.9(2)\times10^{-4}$ for two-qubit gates, and $4.8(6)\times10^{-4}$ for state preparation and measurement, none of which are fundamentally limited and likely able to be improved. These component infidelities are predictive of system-level performance in both random Clifford circuits and random circuit sampling, the latter demonstrating that Helios operates well beyond the reach of classical simulation and establishes a new frontier of fidelity and complexity for quantum computers. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2511_05465 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Helios: A 98-qubit trapped-ion quantum computer Ransford, Anthony Allman, M. S. Arkinstall, Jake Campora III, J. P. Cooper, Samuel F. Delaney, Robert D. Dreiling, Joan M. Estey, Brian Figgatt, Caroline Hall, Alex Husain, Ali A. Isanaka, Akhil Kennedy, Colin J. Kotibhaskar, Nikhil Madjarov, Ivaylo S. Mayer, Karl Milne, Alistair R. Park, Annie J. Reed, Adam P. Ancona, Riley Andersen, Molly P. Andres-Martinez, Pablo Angenent, Will Argueta, Liz Arkin, Benjamin Ascarrunz, Leonardo Baker, William Barnes, Corey Bartolotta, John Berg, Jordan Besand, Ryan Bjork, Bryce Blain, Matt Blanchard, Paul Blume-Kohout, Robin Bohn, Matt Borgna, Agustin Botamanenko, Daniel Y. Boutelle, Robert Brown, Natalie Buckingham, Grant T. Burdick, Nathaniel Q. Burton, William Cody Carey, Varis Carron, Christopher J. Chambers, Joe Children, John Colussi, Victor E. Crepinsek, Steven Cureton, Andrew Davies, Joe Davis, Daniel DeCross, Matthew Deen, David Delaney, Conor DelVento, Davide DeSalvo, B. J. Dominy, Jason Duncan, Ross Eccles, Vanya Edgington, Alec Erickson, Neal Erickson, Stephen Ertsgaard, Christopher T. Evans, Bruce Evans, Tyler Fabrikant, Maya I. Fischer, Andrew Foltz, Cameron Foss-Feig, Michael Francois, David Freyberg, Brad Gao, Charles Garay, Robert Garvin, Jane Gaudiosi, David M. Gilbreth, Christopher N. Giles, Josh Glynn, Erin Graves, Jeff Hansen, Azure Hayes, David Heidemann, Lukas Higashi, Bob Hilbun, Tyler Hines, Jordan Hlavaty, Ariana Hoffman, Kyle Hoffman, Ian M. Holliman, Craig Hooper, Isobel Horning, Bob Hostetter, James Hothem, Daniel Houlton, Jack Hout, Jared Hutson, Ross Jacobs, Ryan T. Jacobs, Trent Johannsen, Melf Johansen, Jacob Jones, Loren Julian, Sydney Jung, Ryan Keay, Aidan Klein, Todd Koch, Mark Kondo, Ryo Kong, Chang Kosto, Asa Lawrence, Alan Liefer, David Lollie, Michelle Lucchetti, Dominic Lysne, Nathan K. Lytle, Christian MacPherson, Callum Malm, Andrew Mather, Spencer Mathewson, Brian Maxwell, Daniel McCaffrey, Lauren McDougall, Hannah Mendoza, Robin Mills, Michael Morrison, Richard Narmour, Louis Nguyen, Nhung Nugent, Lora Olson, Scott Ouellette, Daniel Parks, Jeremy Peters, Zach Petricka, Jessie Pino, Juan M. Polito, Frank Preidl, Matthias Price, Gabriel Proctor, Timothy Pugh, McKinley Ratcliff, Noah Raymondson, Daisy Rhodes, Peter Roman, Conrad Roy, Craig Ryan-Anderson, Ciaran Sanchez, Fernando Betanzo Sangiolo, George Sawadski, Tatiana Schaffer, Andrew Schow, Peter Sedlacek, Jon Semenenko, Henry Shevchuk, Peter Shore, Susan Siegfried, Peter Singhal, Kartik Sivarajah, Seyon Skripka, Thomas Sletten, Lucas Spaun, Ben Sprenkle, R. Tucker Stoufer, Paul Tader, Mariel Taylor, Stephen F. Thompson, Travis H. Tobey, Raanan Tran, Anh Tran, Tam Vittorini, Grahame Volin, Curtis Walker, Jim White, Sam Wilson, Douglas Wolf, Quinn Wringe, Chester Young, Kevin Zheng, Jian Zuraski, Kristen Baldwin, Charles H. Chernoguzov, Alex Gaebler, John P. Sanders, Steven J. Neyenhuis, Brian Stutz, Russell Bohnet, Justin G. Quantum Physics Atomic Physics We report on Quantinuum Helios, a 98-qubit trapped-ion quantum processor based on the quantum charge-coupled device (QCCD) architecture. Helios features $^{137}$Ba$^{+}$ hyperfine qubits, all-to-all connectivity enabled by a rotatable ion storage ring connecting two quantum operation regions by a junction, speed improvements from parallelized operations, and a new software stack with real-time compilation of dynamic programs. Averaged over all operational zones in the system, we achieve average infidelities of $2.5(1)\times10^{-5}$ for single-qubit gates, $7.9(2)\times10^{-4}$ for two-qubit gates, and $4.8(6)\times10^{-4}$ for state preparation and measurement, none of which are fundamentally limited and likely able to be improved. These component infidelities are predictive of system-level performance in both random Clifford circuits and random circuit sampling, the latter demonstrating that Helios operates well beyond the reach of classical simulation and establishes a new frontier of fidelity and complexity for quantum computers. |
| title | Helios: A 98-qubit trapped-ion quantum computer |
| topic | Quantum Physics Atomic Physics |
| url | https://arxiv.org/abs/2511.05465 |