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Brazilian-German Wilhelm and Else Heraeus (WEH) Seminar on Superconductivity and Superfluidity: From Condensed Matter to Ultracold Quantum Gases

Workshop | Monday, October 14, 2024 - Friday, October 18, 2024
Directors:
Carlos Sa de Melo (Georgia Institute of Technology)
Axel Pelster (RPTU Kaiserslautern-Landau)
Rodrigo Pereira (International Institute of Physics - UFRN)

 

Where:
IIP, Natal, Brazil 

 

Application Deadline: July 1, 2024

 

Application is closed

 

Overview:
Superconductivity and superfluidity are fascinating macroscopic quantum phenomena that have been at the forefront of research for over one hundred years. New experimental capabilities, systems and samples have led to the discovery of unconventional superconductors with unusual pairing symmetry, to topological superconductors, to the evolution from Bardeen-Cooper-Schrieffer (BCS) to Bose-Einstein Condensation (BEC) superfluidity and to the emergence of supersolids. Novel discoveries in superconductors found in condensed matter physics will be compared to recent developments in the realm of ultracold quantum gases. In general, these two related many-body quantum phenomena are studied independently by condensed matter and atomic/molecular physicists, however this seminar presents a unique opportunity for scientists of these two communities to meet and share their most exciting findings, with the goal of establishing collaborations across fields and nations.

The Binational Wilhelm and Else Heraeus Seminar on Superconductivity and Superfluidity will bring together primarily scientists from Germany and Brazil to discuss the research frontiers in superconductivity and superfluidity in condensed matter and ultracold quantum gases. Scientists from other parts of the world will also participate and provide a global perspective of recent developments. In addition to plenary sessions, where leading experts on superconductivity and superfluidity will present their latest work, the seminar will have contributed talks by some young participants and poster sessions to disseminate widely the research of all attendees.

Main topics:
- non-equilibrium effects in superfluids
- dipolar superfluids and supersolids
- multi-orbital superconductivity
- density driven BCS-BEC crossover
- high-Tc superconductors
- finite momentum pairing
- vortex dynamics and Faraday waves in curved surfaces
- time-dependent disorder in superfluids
- unconventional superconductors

 

Invited speakers:

Mucio Continentino (CBPF Rio de Janeiro, Brazil)
Ilya Eremin (University of Bochum, Germany)
Rafael Fernandes (University of Minnesota, USA)
Gabriele Ferrari (University of Trento, Italy)
Vivian França (Sao Paulo State University, Brazil)
Hermann Freire (Federal University of Goias, Brazil)
Amilson Fritsch (University of Sao Paulo, Sao Carlos, Brazil)
Arnaldo Gammal (University of Sao Paulo, Brazil)
Laura Greene (NHMFL and Florida State University, USA)
Neil Harrison (Los Alamos National Lab, USA)
Yoshihiro Iwasa (Tokyo University, Japan)
Ralf Klemt (University of Stuttgart, Germany)
Johann Kroha (University of Bonn, Germany)
Eduardo Marino (Federal University of Rio de Janeiro, Brazil)
Yuji Matsuda (Kyoto University, Japan)
Stevan Nadj-Perge (Caltech, USA)
Thereza Paiva (Federal University of Rio de Janeiro, Brazil)
Rossitza Pentcheva (University of Duisburg-Essen, Germany)
Flavia Ramos (RPTU Kaiserslautern-Landau, Germany)
Ednilson Santos (Federal University of Sao Carlos, Brazil)
Jacques Tempere (University of Antwerp, Belgium)
Carsten Timm (University of Dresden, Germany)
Artur Widera (RPTU Kaiserslautern-Landau, Germany)
Kali E. Wilson (University of Strathclyde, United Kingdom)

 

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Contactseminar@iip.ufrn.br

EVENT PROGRAM
Print this program
Date Time Speakers Name Talk Title

Sunday

October 13, 2024

03:00 pm - 07:00 pm

Arrival at Hotel

07:30 pm - 09:00 pm

Dinner

Monday

October 14, 2024

08:45 am - 09:00 am

Alvaro Ferraz

International Institute of Physics - UFRN (Brazil)

Opening and Welcome

09:00 am - 09:15 am

Stefan Jorda

WEH foundation (Germany)

Opening and Welcome

09:00 am - 09:15 am

Session 1: Morning – Superconductors: Unconventional

09:15 am - 10:00 am

Laura Greene

Invited Talk

National High Magnetic Field Laboratory and Florida State University (United States of America)

Unconventional Superconductivity overview and Planar Tunneling into Kondo Lattices

10:00 am - 10:45 am

Ilya Eremin

Invited Talk

University of Bochum (Germany)

Magnetic fluctuations, superconducting instability, and layer selectivity in bilayer nickelates under high pressure

10:45 am - 11:15 am

Coffee Break

11:00 am - 11:15 am

Session 2: Morning – Superconductors: Two dimensional systems

11:15 am - 12:00 pm

Yoshihiro Iwasa

Invited Talk

RIKEN (Japan)

Density controlled BCS-BEC crossover in a 2D superconductor

12:00 pm - 12:45 pm

Hermann Freire

Invited Talk

Federal University of Goias (Brazil)

Non-Fermi liquid, superconductivity and pair density wave in a doped Mott insulator: Lessons from a 2D exactly solvable model

12:45 pm - 02:15 pm

Lunch

02:00 pm - 02:15 pm

Session 3: Afternoon – Superfluids: Condensates of Light

02:15 pm - 03:00 pm

Johann Kroha

Invited Talk

University of Bonn (Germany)

Coherence and dephasing in driven-dissipative condensates of light

03:15 pm - 03:30 pm

Session 4: Afternoon – Poster Flash Presentations

03:30 pm - 04:15 pm

Plenary Poster Flash Presentations I

04:15 pm - 04:45 pm

Coffee Break

04:45 pm - 05:30 pm

Plenary Poster Flash Presentations II

07:30 pm - 09:00 pm

Dinner

Tuesday

October 15, 2024

08:45 am - 09:00 am

Session 5: Morning – Superfluids: Turbulence

09:00 am - 09:45 am

Amilson Rogelso Fritsch

Invited Talk

University of Sao Paulo (Brazil)

Relaxation of an out-of-equilibrium closed quantum system: Experimental observations of decay of turbulence and the stages to reach equilibrium

09:45 am - 10:30 am

Ednilson Santos

Invited Talk

Federal University of Sao Carlos (Brazil)

Hydrodynamic Energy Spectrum from Wave Turbulence

10:30 am - 11:00 am

Coffee Break

10:55 am - 11:00 am

Session 6: Morning – Superconductors and Superfluids: Fermi surfaces and topology

11:00 am - 11:45 am

Joachim Brand

Invited Talk

Massey University (New Zealand)

Odd-frequency superfluidity from a particle-number-conserving perspective

11:45 am - 12:30 pm

Vivian V. França

Invited Talk

UNESP - Sao Paulo State University (Brazil)

Topological phases in one-dimensional superfluid Hubbard chains probed by entanglement measures

12:30 pm - 02:00 pm

Lunch

01:55 pm - 02:00 pm

Session 7: Afternoon – Superfluids: Bosons and Fermions

02:00 pm - 02:45 pm

Arnaldo Gammal

Invited Talk

USP - University of Sao Paulo (Brazil)

Stability of Bose-condensed mixtures in a shell trap and Faraday waves induced by a Rabi coupling

02:45 pm - 03:15 pm

Marcia Frometa Fernandez

Contributed Talk

LENZ, University of Florence (Italy)

Shapiro steps in a 6Li Fermi superfluid Josephson junction

03:15 pm - 03:45 pm

Coffee Break

03:40 pm - 03:45 pm

Section 8: Afternoon – Posters

03:45 pm - 05:15 pm

Poster Session I

07:30 pm - 09:00 pm

Dinner

Wednesday

October 16, 2024

08:55 am - 09:00 am

Session 9: Morning – Superconductors: Iron Selenide and Twisted Bilayers

09:00 am - 09:45 am

Yuji Matsuda

Invited Talk

Kyoto University (Japan)

Exploring the BCS-BEC Crossover Regime in FeSe-based superconductors

09:45 am - 10:30 am

Rafael Fernandes

Invited Talk

University of Illinois Urbana-Champaign (United States of America)

A critical nematic phase with pseudogap-like behavior in twisted bilayers

10:30 am - 11:00 am

Coffee Break

10:55 am - 11:00 am

Session 10: Morning – Superfluids: Vortex Dynamics and Hubbard Model

11:00 am - 11:45 am

Kali E. Wilson

Invited Talk

University of Strathclyde (United Kingdom)

Vortex Dynamics in Binary Superfluids

11:45 am - 12:30 pm

Thereza Paiva

Invited Talk

Federal University of Rio de Janeiro (Brazil)

Attractive Hubbard model: recent advances

12:30 pm - 02:00 pm

Lunch

01:30 pm - 06:00 pm

Excursion

07:00 pm - 10:00 pm

Conference Dinner

Thursday

October 17, 2024

08:55 am - 09:00 am

Session 11: Morning – Superconductors: New Materials and Quantum Phases

09:00 am - 09:45 am

Rossitza Pentcheva

Invited Talk

University of Duisburg-Essen (Germany)

Interface- and defect-induced quantum phases in nickelate thin films and superlattices

09:45 am - 10:30 am

Stevan Nadj-Perge

Invited Talk

Caltech (United States of America)

Imaging strongly correlated and superconducting phases in twisted trilayer graphene

10:30 am - 11:00 am

Coffee Break

10:55 am - 11:00 am

Session 12: Morning – Superconductors: Chains

11:00 am - 11:45 am

Flavia Ramos

Invited Talk

RPTU Kaiserslautern-Landau (Germany)

Nonlinear effects on charge fractionalization in critical chains

11:45 am - 12:30 pm

Mucio Continentino

Invited Talk

Brazilian Center for Research in Physics (Brazil)

Interplay between topology and interactions in superconducting chains

12:30 pm - 02:00 pm

Lunch

01:55 pm - 02:00 pm

Session 13: Afternoon – Superfluids: Phase Transitions

02:00 pm - 02:45 pm

Gabriele Ferrari

Invited Talk

University of Trento (Italy)

False vacuum decay via bubble formation in ferromagnetic superfluids

02:45 pm - 03:15 pm

Krissia Zawadzki

Contributed Talk

University of Sao Paulo (Brazil)

Optimal work storage across the fermionic superfluid-insulator transition

03:15 pm - 03:45 pm

Coffee Break

03:40 pm - 03:45 pm

Session 14: Afternoon – Posters

03:45 pm - 05:15 pm

Poster Session II

07:30 pm - 09:00 pm

Dinner

Friday

October 18, 2024

08:55 am - 09:00 am

Session 15: Morning – Superconductors: Cuprates

09:00 am - 09:45 am

Neil Harrison

Invited Talk

Los Alamos National Lab (United States of America)

Small Pockets and the Origin of the Low Superfluid Density in the Underdoped Cuprates

09:45 am - 10:30 am

Eduardo Marino

Invited Talk

Federal University of Rio de Janeiro (Brazil)

A Successful Theory for High-Tc Superconductivity in Cuprates

10:30 am - 11:00 am

Coffee Break

10:55 am - 11:00 am

Session 12: Morning – Superfluids: Fermions

11:00 am - 11:45 am

Artur Widera

Invited Talk

RPTU Kaiserslautern-Landau (Germany)

Superfluids along the BEC-BCS crossover in time-controlled disorder

11:45 am - 12:30 pm

Jacques Tempere

Invited Talk

University of Antwerp (Belgium)

Collective excitations and vortices in Fermi superfluids

12:30 pm - 02:00 pm

Lunch

01:55 pm - 02:00 pm

Session 14: Afternoon – Superfluids: Supersolids

02:00 pm - 02:45 pm

Ralf Klemt

Invited Talk

University of Stuttgart (Germany)

Sound and amplitude modes in trapped dipolar supersolids

02:45 pm - 03:15 pm

Tobias Grass

Contributed Talk

Donostia International Physics Center (Spain)

Lattice bosons with non-local interactions: From Bose metals to supersolids and string-ordered phases of matter

03:15 pm - 03:45 pm

Coffee Break

03:45 pm - 04:15 pm

Concluding Remarks – Poster Prizes

07:30 pm - 09:00 pm

Dinner