Efficient Qubit Calibration by Binary-Search Hamiltonian Tracking

  1. Fabrizio Berritta,
  2. Jacob Benestad,
  3. Lukas Pahl,
  4. Melvin Mathews,
  5. Jan A. Krzywda,
  6. Réouven Assouly,
  7. Youngkyu Sung,
  8. David K. Kim,
  9. Bethany M. Niedzielski,
  10. Kyle Serniak,
  11. Mollie E. Schwartz,
  12. Jonilyn L. Yoder,
  13. Anasua Chatterjee,
  14. Jeffrey A. Grover,
  15. Jeroen Danon,
  16. William D. Oliver,
  17. and Ferdinand Kuemmeth
We present a real-time method for calibrating the frequency of a resonantly driven qubit. The real-time processing capabilities of a controller dynamically compute adaptive probing

Deterministic remote entanglement using a chiral quantum interconnect

  1. Aziza Almanakly,
  2. Beatriz Yankelevich,
  3. Max Hays,
  4. Bharath Kannan,
  5. Reouven Assouly,
  6. Alex Greene,
  7. Michael Gingras,
  8. Bethany M. Niedzielski,
  9. Hannah Stickler,
  10. Mollie E. Schwartz,
  11. Kyle Serniak,
  12. Joel I.J. Wang,
  13. Terry P. Orlando,
  14. Simon Gustavsson,
  15. Jeffrey A. Grover,
  16. and William D. Oliver
Quantum interconnects facilitate entanglement distribution between non-local computational nodes. For superconducting processors, microwave photons are a natural means to mediate this

Monitoring the energy of a cavity by observing the emission of a repeatedly excited qubit

  1. Hector Hutin,
  2. Antoine Essig,
  3. Réouven Assouly,
  4. Pierre Rouchon,
  5. Audrey Bienfait,
  6. and Benjamin Huard
The number of excitations in a large quantum system (harmonic oscillator or qudit) can be measured in a quantum non demolition manner using a dispersively coupled qubit. It typically

Qplacer: Frequency-Aware Component Placement for Superconducting Quantum Computers

  1. Junyao Zhang,
  2. Hanrui Wang,
  3. Qi Ding,
  4. Jiaqi Gu,
  5. Reouven Assouly,
  6. William D. Oliver,
  7. Song Han,
  8. Kenneth R. Brown,
  9. Hai "Helen" Li,
  10. and Yiran Chen
Noisy Intermediate-Scale Quantum (NISQ) computers face a critical limitation in qubit numbers, hindering their progression towards large-scale and fault-tolerant quantum computing.

Energetics of a Single Qubit Gate

  1. Jeremy Stevens,
  2. Daniel Szombati,
  3. Maria Maffei,
  4. Cyril Elouard,
  5. Réouven Assouly,
  6. Nathanaël Cottet,
  7. Rémy Dassonneville,
  8. Quentin Ficheux,
  9. Stefan Zeppetzauer,
  10. Audrey Bienfait,
  11. Andrew N. Jordan,
  12. Alexia Auffèves,
  13. and Benjamin Huard
Qubits are physical, a quantum gate thus not only acts on the information carried by the qubit but also on its energy. What is then the corresponding flow of energy between the qubit

Number-resolved photocounter for propagating microwave mode

  1. Rémy Dassonneville,
  2. Réouven Assouly,
  3. Théau Peronnin,
  4. Pierre Rouchon,
  5. and Benjamin Huard
Detectors of propagating microwave photons have recently been realized using superconducting circuits. However a number-resolved photocounter is still missing. In this letter, we demonstrate