BEGIN:VCALENDAR
VERSION:2.0
METHOD:PUBLISH
CALSCALE:GREGORIAN
PRODID:-//WordPress - MECv6.4.2//EN
X-ORIGINAL-URL:https://www.lps.u-psud.fr/
X-WR-CALNAME:Laboratoire de physique des Solides
X-WR-CALDESC:
REFRESH-INTERVAL;VALUE=DURATION:PT1H
X-PUBLISHED-TTL:PT1H
X-MS-OLK-FORCEINSPECTOROPEN:TRUE
BEGIN:VEVENT
CLASS:PUBLIC
DTSTART;TZID=Europe/Paris:20261102T140000
DTEND;TZID=Europe/Paris:20261102T180000
DTSTAMP:20261028T114000
UID:MEC-182bd81ea25270b7d1c2fe8353d17fe6@lps.u-psud.fr
CREATED:20261028
LAST-MODIFIED:20261028
PRIORITY:5
TRANSP:OPAQUE
SUMMARY:Marcelo Goffman : A quantum circuit harnessing both the bosonic and the fermionic side of the Josephson effect
DESCRIPTION:\nAbstract\n\n\n\nSuperconducting artificial atoms rely on Josephson junctions, whose quantum variable is the phase difference φ, a collective electromagnetic degree of freedom of the condensate. Yet, every Josephson weak link also hosts a fermionic degree of freedom: the occupation of Andreev bound states by quasiparticles.This second quantum variable can encode qubits when the weak link is highly transparent and a magnetic flux threading a small-inductance loop imposes a classical phase φ across it. Up to now, every explored circuit exploits the quantumness of just one of these degrees of freedom, while the other stays frozen. What happens when a transparent weak link is embedded in a large-inductance circuit, so that both degrees of freedom are dynamical? Bosonic and fermionic excitations hybridize, opening regimes where the circuit low-energy states are protected against relaxation and, at sweet spots, against dephasing. I will discuss this circuit, which we call FerBo, and present a first implementation based on an InAs/Al nanowire weak link and a Josephson-junction-array superinductance.\n\n\n\n\n\n\n\nMarcelo Goffman, Quantronics Group, Service de Physique de l’Etat Condensé, CEA-CNRS, CEA-Saclay, 91191 Gif-sur-Yvette Cedex, France\n
URL:https://www.lps.u-psud.fr/events/marcelo-goffman-a-quantum-circuit-harnessing-both-the-bosonic-and-the-fermionic-side-of-thejosephson-effec/
ATTACH;FMTTYPE=image/jpeg:https://www.lps.u-psud.fr/wp-content/uploads/2026/10/1587801148783.jpg
END:VEVENT
END:VCALENDAR