ELFT HÍRADÓ

[Andras Palyi <palyi.andras AT ttk.bme.hu>]

Dear Colleagues, 

Next Tuesday at 16:15 (note unusual time) the BME Exotic Quantum Phases 
seminar continues with this talk:

    Andras Gyenis (University of Colorado Boulder)
    Noise-protected superconducting qubits

online in Teams
Time: Dec 14 Tuesday, 16:15 Budapest time (note unusual time)
Abstract: see below

About the speaker: Andras is an assistant professor in electrical engineering 
at the University of Colorado Boulder. He received his BS and MS in 
experimental condensed matter physics at the Budapest University of 
Technology, Hungary. Prior to joining CU Boulder, Andras received his PhD in 
physics at Princeton University in 2016, investigating the surface and bulk 
properties of unconventional superconductors, strongly correlated electronic 
systems and topological materials using ultra-low temperature scanning 
tunneling microscopy. He continued as a postdoctoral researcher at the 
Department of Electrical Engineering at Princeton, focusing on the design, 
fabrication and measurement of superconducting quantum circuits. Between 2020 
and 2021, he has extended his research focus by developing 
semiconductor-based quantum devices at the Niels Bohr Institute at the 
University of Copenhagen as a visiting assistant professor. The defining 
feature of his current research program at CU Boulder is to realize hybrid 
superconducting – semiconducting quantum devices that harness intrinsic 
protection to extend the lifetime of quantum processors.

Teams link:
https://teams.microsoft.com/l/meetup-join/19%3a98c537f3ff3a433983cc04579e4603af%40thread.tacv2/1639116222045?context=%7b%22Tid%22%3a%226a3548ab-7570-4271-91a8-58da00697029%22%2c%22Oid%22%3a%22f8b27e90-dbca-4bb5-813c-d6415577ec35%22%7d

Best regards
Andras Palyi

= = = 

Noise-protected superconducting qubits

Artificial atoms realized by superconducting circuits offer unique 
opportunities to store and process quantum information with high fidelity. 
Among them, implementations of circuits that harness intrinsic noise 
protection have been rapidly developed in recent years. These noise-protected 
devices constitute a new class of qubits in which the computational states 
are largely decoupled from local noise channels. The main challenges in 
engineering such systems are simultaneously guarding against both bit- and 
phase-flip errors, and also ensuring high-fidelity qubit control. In this 
talk, we review the theoretical principles at the heart of these new qubits, 
describes recent experiments, and highlights the potential of robust encoding 
of quantum information in superconducting qubits.

PRX Quantum 2, 030101 (2021)
PRX Quantum 2, 010339 (2021)
Phys. Rev. Applied 14, 054033 (2020)