The Schedule
Tentative schedule below
Day 1
Sunday February 25
5:00 PM - 7:00 PM Evening Reception at the Aspen Center for Physics (ACP) with light refreshments
7:00 PM Dinner at the Hickory House
Day 2
Monday February 26
8:00 - 8:10 AM Welcome: Susan Coppersmith, Ken Brown, Christian Enss and Clare Yu
Morning Session: Superconducting Qubits (Chair: Clare Yu)
8:10 - 8:45 AM John Martinis (Qolab) "A Quantum Technology Roadmap and Qubit Coherence"
8:55 - 9:30 AM Britton Plourde (Syracuse) "Correlated Phonon-mediated Quasiparticle Poisoning of Superconducting Qubits"
9:40 - 10:00 AM Break
10:00 - 10:35 AM Sebastian Kempf (Karlsruhe) "Low-Frequency Excess Flux Noise in Superconducting Quantum Devices"
10:45 - 11:45 AM Power Hour (Power Hour Discussion Questions) (Trademarked program of the Gordon Research Conferences) (Lunch provided to participants)
11:45 AM - 4:30 PM Afternoon Break, Time for Informal Discussions
Afternoon Session: Superconducting Qubits (Chair: Bob Joynt)
4:30 - 5:00 PM Snacks and Refreshments
5:00 - 5:35 PM Alexander Bilmes (Google) "Probing Defect Densities at the Edges and Inside Josephson Junctions of Superconducting Qubits"
5:45 - 6:20 PM Juergen Lisenfeld (KIT) "Spectroscopy of TLS-Defects in Qubits and Resonators
6:30 PM Dinner on your own
Day 3
Tuesday February 27
Morning Session: Superconducting and Semiconducting Qubits (Chair: Christian Enss)
8:00 AM– 8:35 AM Sebastian De Graaf (National Physical Lab UK) “Suppressing TLS material defects by 3He immersion cooling of superconducting circuits”
8:45 AM – 9:20 AM Elisabetta Paladino (Catania) “Noise mechanisms in short ballistic graphene Josephson junctions”
9:30 AM – 9:50 AM Break
9:50 AM – 10:25 AM Lara Faoro (Google) "Coherent TLS formed by quasiparticles and their contribution to qubits decoherence"
10:35 AM – 11:10 AM Irene Fernandez de Fuentes (TU Delft) “Multiqubit operation in a six-qubit array in 28Si/SiGe: Challenges and Approaches”
11:20 AM – 11:35 AM Roman Lutchyn (Microsoft) “Interferometric Single-Shot Parity Measurement in an InAs-Al Hybrid Device”
11:40 AM - 4:30 PM Afternoon break, Time for Informal Discussions
Afternoon Session: Semiconducting Qubits (Chair: Baha Balantekin)
4:30 PM - 5:00 PM Snacks and Refreshments
5:00 PM – 5:35 PM John Nichol (Rochester) “Under the hood: microscopic noise characterization in semiconductor quantum dots”
5:45 PM – 6:20 PM Jason Kestner (Maryland Baltimore County) “A proposed real-time, in-situ, valley-mediated charge noise probe”
6:30 – 8:00 PM Poster Session at the ACP with food and refreshments
Day 4
Wednesday, February 28
Morning Session I: Superconducting Qubits and NV Centers (Chair: Sue Coppersmith)
8:00 AM – 8:35 AM Nathalie De Leon (Princeton) “New material platforms for quantum computing”
8:45 AM – 9:00 AM Ruqian Wu (UC Irvine) “Understanding the Superiority of Tantalum over Niobium for Superconducting Qubits: Insights from Tunneling Two-Level Systems at the Air-Oxide Interface”
9:05 AM – 9:20 AM David Pappas (Rigetti) “Precision Trimming of Josephson Junctions for Transmon Qubits"
Qubits"
9:25 AM - 9:40 AM Agnetta Cleland (Google) "Studying TLS-induced phonon decoherence with a quantum sensor"
9:45 AM – 10:05 AM Break
Morning Session II:Trapped Ion Qubits
10:05 AM – 10:40 AM John Chiaverini (MIT) “Surface-generated electric-field noise affecting trapped-ion quantum logic”
10:50 AM – 11:25 AM Philipp Schindler (Innsbruck) “Decoherence in trapped-ion systems - From qubits to molecules”
11:35 AM – 5:30 PM Afternoon Break, Time for Informal Discussions
Afternoon Session (Chair: Ken Brown)
5:30 PM – 6:30 PM Public Lecture in Flug Auditorium: Nathalie De Leon (Princeton) “How to build a better qubit”
7:00 PM Dinner on your own
Day 4
Thursday, February 29
Morning Session I: Trapped Ion Qubits (Chair: Ken Brown)
8:00 AM – 8:35 AM Melissa Revelle (Sandia) “Pulse Designs and Gate Parameterization to Mitigate Noise in QSCOUT”
8:45 AM – 9:20AM Riddhi Gupta (IBM) “Encoding a magic state with beyond break-even fidelity”
9:30 AM – 9:50 AM Break
9:50 AM – 10:25 AM Sara Mouradian (Univ. of Washington) “Increasing Qubit Count and Connectivity Without Sacrificing Fidelity”
10:35 AM – 10:50 AM Michael Flatte (Iowa) "Advances in the Control of Surface Noise Affecting Spin Center Qubits"
10:55 AM – 11:10 AM Maja Cassidy (UNSW) “Spin qubits using electrons on solid neon”
11:15 AM - 4:30 PM Afternoon break, Time for Informal Discussions
Afternoon Session: Neutral Atom Qubits (Chair: Alex Hamilton)
4:30 PM - 5:00 PM Snacks and Refreshments
5:00 PM – 5:35 PM Madelyn Cain (Harvard) "Correlated decoding of logical algorithms with transversal gates"
5:45 PM – 6:20 PM Jeff Thompson (Princeton) “Quantum computing with Yb Rydberg atoms”
6:30 – 8:00 PM Poster Session at the ACP with food and refreshments provided.
Day 5
Friday, March 1
Morning Session: Dark Matter, NV Centers and Error Correction (Chair: Sue Coppersmith)
8:00 AM – 8:35AM Matt Pyle (Berkeley) "Evidence for Quasiparticle Poisoning due to Thermal Stress Induced Microfractures "
8:45 AM – 9:20 AM Tim Taminiau (TU Delft) “High-fidelity control of diamond spin qubits embedded in electron-nuclear spin baths”
9:30 AM – 9:50 AM Break
9:50 AM – 10:25 AM Murphy Niu (Maryland) “Low Depth Robust Gate Calibration against Time-dependent Noise”
10:35 AM – 10:50AM Robert Joynt (Wisconsin) “Interacting Random-field Dipole Defect Model for Heating in
Semiconductor-based Qubit Devices”
10:55 AM - 11:10 AM Pertti Hakonen (Aalto, Finland) "1/f Noise Due to Mobile Impurities"
11:15 AM – 11:30AM Awards (Block prize)
Acknowledgements
The 2024 Aspen Winter Conference on Noise and Decoherence in Qubits and the Aspen Center for Physics warmly acknowledges generous financial assistance from the Army Research Office, NSF STAQ, DOE QSCOUT, and Google.