Quantum computing with neutral ytterbium atoms

Add to your list(s) Download to your calendar using vCal

• Jeff Thompson, Department of Electrical and Computer Engineering Princeton University
• Tuesday 18 April 2023, 10:00-11:00
• Small Lecture Theatre, Cavendish Laboratory, J.J. Thomson Avenue.

If you have a question about this talk, please contact .

Quantum computing with neutral atoms has progressed rapidly in recent years, combining large system sizes, flexible and dynamic connectivity, and quickly improving gate fidelities. The pioneering work in this field has been implemented using alkali atoms, primarily rubidium and cesium. However, divalent, alkaline-earth-like atoms such as ytterbium offer significant technical advantages. In this talk, I will present our progress on quantum computing using 171-Yb atoms, including high-fidelity imaging, nuclear spin qubits with extremely long coherence times, and two-qubit gates on nuclear spins using Rydberg states [1,2]. I will also discuss several unexpected benefits of alkaline-earth-atoms: an extremely robust and power-efficient local gate addressing scheme [3], and a novel approach to quantum error correction called “erasure conversion”, which has the potential to implement the surface code with a threshold exceeding 4%, using the unique level structure of 171-Yb to convert spontaneous emission events into erasure errors [4]. Time permitting, I will also present some recent work towards telecom-band quantum networks with single Er3+ ions in silicon nanophotonic circuits [5].

[1] S. Saskin et al, Phys. Rev. Lett. 122, 143002 (2019). [2] A. P. Burgers et al, PRX Quantum 3, 020326 (2022). [3] S. Ma, A. P. Burgers, et al, Phys. Rev. X 12 , 021028 (2022). [4] Y. Wu, et al, Nat. Comms. 13, 4657 (2022). [5] S. Ourari et al., 2301.03564 (2023)

This talk is part of the AMOP list series.

This talk is included in these lists:

• Small Lecture Theatre, Cavendish Laboratory, J.J. Thomson Avenue
• AMOP list
• All Cavendish Laboratory Seminars
• All Talks (aka the CURE list)
• Centre for Health Leadership and Enterprise
• Featured lists
• ME Seminar
• Neurons, Fake News, DNA and your iPhone: The Mathematics of Information
• School of Physical Sciences
• Thin Film Magnetic Talks

Note that ex-directory lists are not shown.