Click to download (1 Mb)

Click to download (1 Mb)


The Second International Conference on Multi-Condensate Superconductivity and Superfluidity in Solids and Ultracold Gases 
was held at the historic University of Camerino (1336) in the medieval hilltop town of Camerino in the Apennine mountains.
The first in this conference series was held in Lausanne in 2012.  The conferences provide an excellent forum for presenting and discussing recent developments in diverse fields of multiband and multi-component superconductivity and superfludity.

Top

     Conference Topics:    
  • Multiband superconductivity in novel materials. 

  • Multi-component ultracold atoms and molecules.

  • Electron-hole superfluidity in semiconducting and graphene systems.

  • Low dimensional superconductors and superfluids: quantum size effects and shape resonances.
    Top

Video Recordings of Talks (Click)

Book of Abstracts [5 Mb] (Click)

Top
The Conference Venue was the Ducal Palace (Palazzo Ducale) on the main square (Piazza Cavour) in the centre of Camerino

Top

Participants

Jose Albino Aguiar         (Universidade Federal de Pernambuco, Brazil)

Grigory Astrakharchik    (Universitat Politècnica Catalunya, Barcelona, Spain)

Egor Babaev                  (Amherst, USA and RIT, Stockholm, Sweden)

Luca Barbiero                (University of Padua, Italy)

Daniel Barci                   (Universidade do Estado do Rio de Janeiro, Brazil)

Gordon Baym                (University Illinois at Urbana-Champaign, USA)

Lara Benfatto                 (ISC-CNR and Sapienza University of Rome, Italy)

Gianluca Bertaina          (University of Milan, Italy)

Antonio Bianconi            (RICMASS, Rome, Italy)

Giacomo Bighin             (University of Padua, Italy)

Luca Boarino                  (Istituto Nazionale Ricerca Metrologica, Turin, Italy)

Sergey Borisenko          (Leibnitz Institute, Dresden, Germany)

Jordi Boronat               (Universitat Politècnica Catalunya, Barcelona, Spain)

Sangita Bose                 (Mumbai University, India)

Massimo Capone           (SISSA and CNR-IOM Democritos, Trieste, Italy)

Sergio Caprara               (Sapienza University of Rome, Italy)

Laura Corredor               (Universidade Federal de Pernambuco, Brazil)

Mihail  Croitoru              (University of Antwerp, Belgium)

Dario Daghero                (Politecnico di Torino, Italy)

Rogerio Da Silva            (Universidade Federal de Pernambuco, Brazil)

Natascia De Leo             (Istituto Nazionale Ricerca Metrologica, Turin, Italy)

Stefania De Palo            (CNR-IOM Democritos & University of Trieste, Italy)

Donatello Dolce             (University of Camerino, Italy)

Mauro Doria                   (Universidade do Estado do Rio de Janeiro, Brazil)

Alexander Fetter            (Stanford University, USA)

Elisa Fratini                   (ICTP, Trieste, Italy)

Giorgio Frossati             (Leiden Cryogenics, Netherlands)

Antonio Garcia-Garcia    (Universities of Cambridge, UK & Lisboa, Portugal)

Stefano Giorgini             (University of Trento, Italy)

Andreas Glatz               (Argonne National Laboratory, USA)

Andrea Guidini               (University of Camerino, Italy)

Alexander Hamilton        (University of New South Wales, Sydney, Australia)

Yukio Hasegawa            (University of Tokyo, Japan)

Zhao Huang                   (NIMS and University of Tsukuba, Japan)

Oleksiy Kashuba           (Technische Universitat Dresden, Germany)

Yurii Lozovik                   (Institute Spectroscopy, Moscow, Russia)

Allan MacDonald            (University of Texas at Austin, USA)

Kazushige Machida        (Okayama University, Japan)

Pieralberto Marchetti      (University of Padua, Italy)



Frank Marsiglio              (University of Alberta, Edmonton, Canada)

Milorad Milosevic           (University of Antwerp, Belgium)

Riccardo Natali              (University of Camerino, Italy)

David Neilson                 (University of Camerino, Italy)

Natalia  Orlova                (University of Antwerp, Belgium)

Silke Ospelkaus             (Hannover University, Germany)

Johnpierre Paglione      (University Maryland, College Park, USA)

Fabrizio Palestini           (University of Camerino, Italy)

Fabrizio Palumbo           (INFN Laboratorio Nazionali di Frascati, Italy)

François Peeters           (University Antwerp, Belgium)

Andrea Perali                 (University of Camerino, Italy)

Pierbiagio Pieri              (University of Camerino, Italy)

Sebastiano Pilati            (ICTP, Trieste, Italy)

Nicola Pinto                     (University of Camerino, Italy)

Marco Polini                     (NEST and SNS, Pisa, Italy)

Leonid Ponomarenko      (Lancaster University, England)

Flavia Portela                   (Universidade Federal de Pernambuco, Brazil)

Guido Pupillo                    (University of Strasbourg and CNRS, France)

Khandker Quader            (Kent State University, USA)

Seyed Javad Rezvani      (University of Camerino, Italy)

Alessandro Ricci             (DESY, Hamburg, Germany)

Dimitri Roditchev             (University Paris 6 - CNRS, Paris, France)

Carlos Sa de Melo         (Georgia Tech, Atlanta, USA)

Luca Salasnich              (University of Padua, Italy)

Pedro Sanchez-Lotero    (Universidade Federal de Pernambuco, Brazil)

Peter Schuck                 (LPMMC & Institute Physics Nuclear Orsay, France)

Arkady Shanenko          (Universidade Federal de Pernambuco, Brazil)

Gaetano Senatore          (University Trieste, Italy)

Manfred Sigrist              (ETH, Zurich, Switzerland)

Stefano Simonucci         (University of Camerino, Italy)

Giancarlo Strinati           (University Camerino, Italy)

Bilal Tanatar                  (Bilkent University, Ankara, Turkey)

Jacques Tempere          (University of Antwerp, Belgium)

Paivi Torma                   (Aalto University, Helsinki, Finland)

Chris Vale                      (Swinburne University, Melbourne, Australia)

Alexei Vagov                  (Bayreuth University, Germany)

Georgios Varelogiannis   (National Technical University of Athens, Greece)

Andrei Varlamov             (CNR and University of Rome "Tor Vergata", Italy)
Top
Scientific Committee
      David Neilson           (University of Camerino, Italy)
      Andrea Perali            (University of Camerino, Italy)
      Milorad Milosevic     (University of Antwerp, Belgium)
      Arkady Shanenko    (University of Pernambuco, Brazil)

                  Organising Committee
      David Neilson   <david.neilson {at} unicam.it>
       Andrea Perali    <andrea.perali {at} unicam.it>
       Fiorella Paino   <fiorella.paino {at} unicam.it>

Background
Discovery of superconductivity in MgB2 in 2001 had marked the appearance of a new class of superconductors - multiband (multigap) superconducting materials. Multigap superconductivity arises when the gap amplitudes on different sheets of the Fermi surface are radically disparate, e.g. due to different dimensionality of the bands for the usual phonon-mediated pairing, as in the case of MgB2, or due to the repulsive interband pairing interactions, as in the case of  most iron-based superconductors, or due to the appearance of multiple Fermi-surface pockets dictated by the crystalline symmetry like in FeSexTe1-x  and other unconventional multiband superconducting compounds. In all such systems it is of abiding interest to understand how multiple condensates affect the macroscopic properties of samples. In other words, it is important to know in which cases different band-condensates work cooperatively and in which destructively for particular phenomena of interest. This is the key objective of the conference series "MultiSuper". The first in this conference series was held in Lausanne in 2012. We are pleased to present the second one in Camerino, MultiSuper2014.

Interestingly enough, even single-band superconductors and fermionic superfluids can become effectively multiband, in samples confined to nanoscale. In such systems, their physical properties can be tailored by their geometrical shape and dimensions beyond any previous possibility, provided that the understanding of background physics and all competing phenomena is achieved. In particular, quantum confinement of the perpendicular motion of electrons in nanothin films splits the conduction band into a series of single-electron subbands, i.e. an effectively multiband scenario. Thus, before eventually becoming suppressed in lower dimensions, superconductivity exhibits an almost unexplored regime governed by quantum confinement, i.e., the nanoscale multiband superconductivity.

Cooling of trapped fermionic atoms down to ultra-low temperatures of the Fermi degeneracy resulted in another kind of systems that is very promising for investigations of the multiband aspects in the coherent phenomena. In the case of trapped atomic Fermi gases the single-particle levels can be widely and very precisely manipulated by laser light or magnetic fields through, e.g., changing the spatial dimensions of a trap. In particular, for a pancake- and cigar-shaped geometry the perpendicular trapping frequency can be chosen much larger than the parallel one. In this case the single-particle states form well distinguished subbands and the physical picture in the trapped quasi-1D and quasi-2D effectively multiband superfluids turns out to be similar to the above-described case of high-quality superconducting nanofilms and nanowires.

Another very promising possibility is to invoke the multi-component condensate complexity by adding extra degrees of freedom, e.g., combining several quantum species of particles with different statistics or with different properties. Such artificial multi-component coherent systems include fermions with spin population imbalance, fermi-fermi and fermi-bose mixtures. Excitonic condensates driven by an inter-layer direct Coulomb interaction form yet another extremely interesting example of a multi-component coherent system. Highly-debated issue here is the possibility to obtain room-temperature superfluids. Recently, this issue was discussed and investigated for the double-monolayer graphene, for the double quadratic bilayer graphene, and hybrid monolayer-bilayer graphene systems.

Top

Venue
Camerino is an historic hill-top town in the Apennine
mountains located 200 kilometres northeast of Rome,
midway between Ancona and Perugia
(coordinates (click) 43018'N 1304'E).








The conference venue will be in the Ducal Palace
located in the medieval centre of Camerino.
Tourist Information
Marche region  Camerino on WikiPedia  Download Camerino Citybook


Top





 
Updated 03 July 2014
Top