Description |
An ICTP meeting in person In collaboration with the Simons Foundation
The conference aims to bring together communities working on quantum fluids such as spin liquids, unconventional superconductors, and fractional quantum Hall states where emergent gauge fields, fractionalization, and topological order, all of which find their root in the RVB paradigm, play the pivotal role.
Founded nearly fifty years ago, the concept of resonating valence bonds (RVBs) for Mott insulators established a paradigm which branched out throughout correlated electron systems and adjacent fields. Looking at the frontier of contemporary condensed matter physics, several directions of quantum fluid states have surfaced where emergent gauge fields, fractionalization, and topological order, all of which find their root in the RVB paradigm, play the pivotal role. It spans across a plethora of topics as diverse as spin liquids, unconventional superconductors, and fractional quantum Hall effect. In this conference, we aim at bringing these communities together, using the RVB paradigm as the common thread between them. As such, we aim at reaching an interactive exchange between those different subfields, and thus a stimulating environment for creating new ideas. Keeping in mind the current trends, we plan to cover the following exciting directions:
Topics:
Speakers:
F. ASSAAD, University of Wurzburg, Germany L. BALENTS, University of California Santa Barbara, USA S. BANERJEE, IISc Bangalore, India E. BASCONES, ICMM, Spain F. BECCA, University of Trieste, Italy S. BHATTACHARJEE, ICTS Bangalore, India C. BROHOLM, Johns Hopkins University, USA A. CHUBUKOV,University of Minnesota, USA A. COIMBATORE BALRAM, IMSc Chennai, India R. COLDEA, University of Oxford, UK K. DAMLE, TIFR Mumbai, India B. DOUÇOT, LPTHE Paris, France N. DRICHKO, Johns Hopkins University, USA B. GAULIN, McMaster University, Canada M. GINGRAS, University of Waterloo, Canada Z. GU, The Chinese University of Hong Kong S. HARAVIFARD, Duke University, USA D. JOSHI, TIFR-Hyderabad, India M. H. JULIEN, LNCMI Grenoble, France R. KAUL, Penn State University, USA H. Y. KEE, University of Toronto, Canada G. KHALIULLIN, MPIFKF Stuttgart, Germany Y.-B. KIM, University of Toronto, Canada B.-J. KIM, KAIST, Korea A. LÄUCHLI, EPFL & PSI, Switzerland S. MANDAL, IOP Bhubaneswar, India Y. MATSUDA, Kyoto University, Japan P. MENDELS, LPS Orsay, France Z. MENG, The University of Hong Kong, Hong Kong F. MILA, EPFL, Switzerland R. MOESSNER, MPIPKS Dresden, Germany S. NAGLER, ORNL, USA N. PERKINS, University of Minnesota, USA F. POLLMANN, TU Munich, Germany J. REUTHER, Freie University Berlin, Germany H. RØNNOW, EPFL, Switzerland A. SANDVIK, Boston University, USA L. SAVARY, ENS Lyon, France M. SCHEURER, University of Stuttgart, Germany U. SCHOLLWÖCK, LMU Munich, Germany A. SEN, IACS Kolkata, India K. SENGUPTA, IACS Kolkata, India O. STARYKH, University of Utah, USA H. TAKAGI, MPIFKF Stuttgart, Germany S. TREBST, University of Cologne, Germany M. VOJTA, TU Dresden, Germany H. YAO, Tsinghua University, China M. YE, University of Utah, USA Y. ZHANG, Johns Hopkins University, USA Call for Contributed Abstracts: All applicants are encouraged to submit an abstract for a poster presentation. Abstract templates are available below for download. Grants: A limited number of grants are available to support the attendance of selected participants, with priority given to participants from developing countries. There is no registration fee. |
Conference on Fractionalization and Emergent Gauge Fields in Quantum Matter | (smr 3834)
Go to day
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08:00 - 09:10
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08:00
Registration and administrative formalities
1h0'
Registration: Upon arrival, Visitors not staying in the ICTP Guest Houses, are kindly requested to complete registration formalities at the Leonardo Building (Lobby) from 8.00 to 9.00.
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09:00
Opening remarks
10'
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08:00
Registration and administrative formalities
1h0'
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09:10 - 11:30
Session Chair: Alexander Chernyshev (University of California, Irvine, USA)
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09:10
Condensation of bosonic pairs in quantum magnets
25'
Speaker: Frederic Mila (École Polytechnique Fédérale de Lausanne, Switzerland) Material: Abstract Slides Video -
09:35
Exploration of a rare-earth candidate Kitaev quantum magnet
25'
Speaker: Radu Coldea (University of Oxford, United Kingdom) Material: Abstract -
10:00
The Catcher in the Rye of Deconfinement
25'
Speaker: Zi-Yang Meng (The University of Hong Kong, Hong Kong) Material: Abstract Slides Video -
10:25
Quantum Spin Nematic Phase in a Square-Lattice Iridate
25'
Speaker: B. J. Kim (Pohang University of Science and Technology, South Korea) Material: Abstract Video - 10:50 Coffee break 40'
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09:10
Condensation of bosonic pairs in quantum magnets
25'
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11:30 - 12:45
Session Chair: Arnab Sen (Indian Association for the Cultivation of Science, Kolkata, India)
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11:30
The emergence of gapless quantum spin liquid near deconfined quantum critical point
25'
Speaker: Zhengcheng Gu (The Chinese University of Hong Kong, Hong Kong) Material: Abstract Slides Video -
11:55
Deconfined quantum criticality in J-Q models
25'
Speaker: Anders W. Sandvik (Boston University, USA) Material: Abstract Slides Video -
12:20
The unconventional normal state of twisted bilayer graphene
25'
Speaker: Elena Bascones (Instituto de Ciencia de Materiales de Madrid, Spain) Material: Abstract Slides Video
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11:30
The emergence of gapless quantum spin liquid near deconfined quantum critical point
25'
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14:30 - 16:30
Session Chair: Bruce D. Gaulin (McMaster University, Canada)
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14:30
K2Ni2(SO4)3 - a quantum spin liquid under thin ice
25'
Speaker: Henrik Ronnow (École Polytechnique Fédérale de Lausanne, Switzerland) Material: Abstract Video -
14:55
Quantum spin liquids induced by electron-phonon coupling: a numerically-exact quantum Monte Carlo study
25'
Speaker: Hong Yao (Tsinghua University, Beijing, China) Material: Abstract Video -
15:20
Spin-Orbit coupled Dirac Fermions
25'
Speaker: Subhro Bhattacharjee (International Centre for Theoretical Sciences, Bangalore, India) Material: Abstract Slides Video - 15:45 Coffee break 45'
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14:30
K2Ni2(SO4)3 - a quantum spin liquid under thin ice
25'
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16:30 - 16:55
Session Chair: Natalia B. Perkins (University of Minnesota, Minneapolis, USA)
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18:00 - 20:00
Location: Leonardo Building - Cafeteria -
18:00
Welcome Reception
2h0'
All participants are cordially invited to a Welcome Reception.
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18:00
Welcome Reception
2h0'
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08:00 - 09:10
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09:00 - 11:30
Session Chair: Michel Gingras (University of Waterloo, Canada)
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09:00
Quantum Spin Ice States in Ce-based Pyrochlore Magnets
25'
Speaker: Bruce D. Gaulin (McMaster University, Canada) Material: Abstract Slides Video -
09:25
Signatures of fractionalization in dipolar-octupolar quantum spin ice
25'
Speaker: Yong-Baek Kim (University of Toronto, Canada) Material: Abstract Slides Video -
09:50
Dynamical fractal in a clean topological magnet
25'
Speaker: Roderich Moessner (Max Planck Institute for the Physics of Complex Systems, Dresden, Germany) Material: Abstract Slides Video -
10:15
Raman spectroscopic signatures of magnetic fluctuations in Kagome planes of Pr2Zr2O7 under H || [111]
25'
Speaker: Natalia Drichko (Johns Hopkins University, USA) Material: Abstract Slides Video - 10:40 Coffee break 50'
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09:00
Quantum Spin Ice States in Ce-based Pyrochlore Magnets
25'
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11:30 - 12:45
Session Chair: Radu Coldea (University of Oxford, United Kingdom)
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11:30
Quantum fluctuations on triangular lattices of Ising spins
25'
Speaker: Collin Broholm (Johns Hopkins University, USA) Material: Abstract Video -
11:55
YbZn2GaO5: A Novel Triangular Lattice Quantum Spin Liquid Candidate
25'
Speaker: Sara Haravifard (Duke University, USA) Material: Abstract -
12:20
Dynamics of the S=1/2 Heisenberg Antiferromagnet on the Triangular
25'
Speaker: Frank Pollmann (Technische Universität Munich, Germany) Material: Abstract Slides Video
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11:30
Quantum fluctuations on triangular lattices of Ising spins
25'
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14:30 - 18:35
Session Chair: Mathias S. Scheurer (University of Stuttgart, Germany)
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14:30
Kagome Quantum Spin Liquids: the case of Herbertsmithite
25'
Speaker: Philippe Mendels (Université Paris-Saclay, France) Material: Abstract Slides Video -
14:55
Superconductivity of non-Fermi liquids described by Sachdev-Ye-Kitaev models
25'
Speaker: Darshan Joshi (Tata Institute of Fundamental Research, Hyderabad, India) Material: Abstract Slides Video -
15:20
What does it take for a Hubbard model to be superconducting?
25'
Speaker: Ulrich Schollwock (Ludwig-Maximilians University Munich, Germany) Material: Abstract Slides Video -
15:45
Dynamical mean-field theories for Rényi entanglement entropy of Fermi and non-Fermi liquids: Hubbard and Sachdev-Ye-Kitaev models
25'
Speaker: Sumilan Banerjee (Indian Institute of Science, Bangalore, India) Material: Abstract Slides Video -
16:10
Lattice effects in spin-orbit entangled Mott insulators
25'
Speaker: Giniyat Khaliullin (Max Planck Institute for Solid State Research, Stuttgart, Germany) Material: Abstract Slides Video - 16:35 Coffee break 30'
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16:35
Poster session
2h0'
All participants with family names starting A-L
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14:30
Kagome Quantum Spin Liquids: the case of Herbertsmithite
25'
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09:00 - 11:30
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09:00 - 11:30
Session Chair: Leon Balents (KITP, University of California, Santa Barbara, USA)
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09:00
From RVB to Skyrmion Crystals: the many facets of spin Berry phases
25'
Speaker: Benoit Doucot (Sorbonne University and CNRS, Paris, France) Material: Abstract Slides Video -
09:25
Emergent chiral metal near a Kondo breakdown quantum phase transition
25'
Speaker: Matthias Vojta (Technische Universität Dresden, Germany) Material: Abstract Slides Video -
09:50
Quantum-critical metals outside the validity of the Eliashberg theory
25'
Speaker: Andrey Chubukov (University of Minnesota, Minneapolis, USA) Material: Abstract Slides Video -
10:15
Deconstructing the spin susceptibility of a cuprate superconductor
25'
Speaker: Marc-Henri Julien (CNRS & Université Grenoble-Alpes, France) Material: Abstract - 10:40 Coffee break 50'
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09:00
From RVB to Skyrmion Crystals: the many facets of spin Berry phases
25'
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11:30 - 12:45
Session Chair: Ulrich Schollwock (Ludwig-Maximilians University Munich, Germany)
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11:30
Phases of the cuprates from the confining transitions of a quantum spin liquid
25'
Speaker: Zhu-Xi Luo (Harvard University, Boston, USA) Material: Abstract Slides Video -
11:55
Fluctuating triplet pairing, multiband superconductivity and an exactly solvable dissipative spin liquid
25'
Speaker: Mathias S. Scheurer (University of Stuttgart, Germany) Material: Abstract Slides Video -
12:20
New high Tc superconductivity and symmetric pseudo gap metal in the nickelate La3Ni2O7
25'
Speaker: Yahui Zhang (Johns Hopkins University, USA) Material: Abstract Slides Video
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11:30
Phases of the cuprates from the confining transitions of a quantum spin liquid
25'
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14:00 - 14:30
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14:30 - 16:30
Session Chair: Roderich Moessner (Max Planck Institute for the Physics of Complex Systems, Dresden, Germany)
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14:30
Two untrodden paths to spin liquid candidates on the pyrochlore lattice
25'
Speaker: Michel Gingras (University of Waterloo, Canada) Material: Abstract Video -
14:55
Thermal phase transition in a generic square lattice compass model
25'
Speaker: Ribhu Kaul (Penn State University, USA) Material: Abstract Video -
15:20
Flux Fractionalization transition in anisotropic S=1 antiferromagnets and dimer-loop models
25'
Speaker: Kedar Damle (Tata Institute of Fundamental Research, Mumbai, India) Material: Abstract Slides Video - 15:45 Group photo 5'
- 15:50 Coffee break 40'
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14:30
Two untrodden paths to spin liquid candidates on the pyrochlore lattice
25'
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16:30 - 17:20
Session Chair: Yong-Baek Kim (University of Toronto, Canada)
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16:30
A tale of two transitions
25'
Speaker: Krishnendu Sengupta (Indian Association for the Cultivation of Science, Kolkata, India) Material: Abstract Slides Video -
16:55
Quantum Effects on Unconventional Pinch Point Singularities
25'
Speaker: Johannes Reuther (Freie Universität Berlin and Helmholtz-Zentrum Berlin für Materialien und Energie, Berlin, Germany) Material: Abstract Slides Video
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16:30
A tale of two transitions
25'
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19:00 - 22:00
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19:00
Conference dinner
3h0'
All participants are cordially invited to a Conference Dinner.
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19:00
Conference dinner
3h0'
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09:00 - 11:30
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09:00 - 11:30
Session Chair: Collin Broholm (Johns Hopkins University, USA)
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09:00
Quantum excitations in 1d: real and simulated
25'
Speaker: Leon Balents (KITP, University of California, Santa Barbara, USA) Material: Abstract Slides Video -
09:25
Dynamical response of magnetized spin liquids
25'
Speaker: Oleg Starykh (University of Utah, USA) Material: Abstract Slides Video -
09:50
Fractional Excitations in low dimensional quantum magnets
25'
Speaker: Stephen E. Nagler (University of Tennessee, Knoxville, USA and Oak Ridge National Laboratory, USA) Material: Abstract Slides Video -
10:15
Majorana-fermion origin for the planar thermal Hall effect in the Kitaev magnet α-RuCl3
25'
Speaker: Yuji Matsuda (Kyoto University, Japan) Material: Abstract Slides Video - 10:40 Coffee break 50'
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09:00
Quantum excitations in 1d: real and simulated
25'
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11:30 - 12:45
Session Chair: Natalia Drichko (Johns Hopkins University, USA)
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11:30
What is the heat carrier of planar thermal Hall conductivity in the Kitaev quantum spin liquid candidate RuCl3?
25'
Speaker: Hidenori Takagi (Max-Planck-Institute for Solid State Research, Stuttgart, Germany) Material: Abstract Slides Video -
11:55
Emergent Majorana and Dirac fermions in spin and electronic systems
25'
Speaker: Fakher Assaad (Julius-Maximilians University of Würzburg, Germany) Material: Abstract Slides Video -
12:20
The saga of α-RuCl3 : Relevant models and phase diagrams
25'
Speaker: Alexander Chernyshev (University of California, Irvine, USA) Material: Abstract Slides Video
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11:30
What is the heat carrier of planar thermal Hall conductivity in the Kitaev quantum spin liquid candidate RuCl3?
25'
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14:30 - 18:10
Session Chair: Subhro Bhattacharjee (International Centre for Theoretical Sciences, Bangalore, India)
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14:30
Qubit Fractionalization and Emergent Majorana Liquid in the Floquet Honeycomb Code
25'
Speaker: Simon Trebst (University of Cologne, Germany) Material: Abstract Slides Video -
14:55
Dynamics of vacancy-induced modes in the non-Abelian Kitaev spin liquid
25'
Speaker: Natalia B. Perkins (University of Minnesota, Minneapolis, USA) Material: Abstract Slides Video -
15:20
Some exact and non-exact gauge dynamics in honeycomb Kitaev model
25'
Speaker: Saptarshi Mandal (Institute of Physics, Bhubaneswar, India) Material: Abstract Slides Video -
15:45
Z2 spin liquids in the higher spin Kitaev Honeycomb model: an exact Z2 gauge structure in a non-integrable model
25'
Speaker: Han Ma (Perimeter Institute for Theoretical Physics, Canada) Material: Abstract Slides Video - 16:10 Coffee break 30'
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16:10
Poster session
2h0'
All participants with family names starting M-Z
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14:30
Qubit Fractionalization and Emergent Majorana Liquid in the Floquet Honeycomb Code
25'
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09:00 - 11:30
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09:00 - 11:30
Session Chair: Ribhu Kaul (Penn State University, USA)
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09:00
Quantum Electrodynamics in 2+1 Dimensions as the Organizing Principle of a Triangular Lattice Antiferromagnet
25'
Speaker: Andreas Laeuchli (École Polytechnique Fédérale de Lausanne and Paul Scherrer Institute, Switzerland) Material: Abstract Video -
09:25
Weak universality in spin models and lattice gauge theories
25'
Speaker: Arnab Sen (Indian Association for the Cultivation of Science, Kolkata, India) Material: Abstract Slides Video -
09:50
Hall transport and Berry gauge fields in quantum materials
25'
Speaker: Lucile Savary (École Normale Supérieure de Lyon, France) Material: Abstract Slides -
10:15
Resonating valence-bond wave functions in the era of neural networks
25'
Speaker: Federico Becca (University of Trieste, Italy) Material: Slides Video - 10:40 Coffee break 50'
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09:00
Quantum Electrodynamics in 2+1 Dimensions as the Organizing Principle of a Triangular Lattice Antiferromagnet
25'
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11:30 - 12:45
Session Chair: Sumilan Banerjee (Indian Institute of Science, Bangalore, India)
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11:30
Crystalline phases and devil's staircase in qubit spin ice
25'
Speaker: Karlo Penc (HUN-REN Wigner Research Centre for Physics, Budapest, Hungary) Material: Abstract Slides Video -
11:55
Towards a unified description of the quantum Hall effects
25'
Speaker: Ajit C. Balram (Institute of Mathematical Sciences, Chennai, India) Material: Abstract Slides Video -
12:20
Theory of conformal Hilbert spaces and the fractionalization of anyons in fractional quantum Hall systems
25'
Speaker: Yang Bo (Nanyang Technological University, Singapore) Material: Abstract Slides Video
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11:30
Crystalline phases and devil's staircase in qubit spin ice
25'
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14:30 - 15:30
Session Chair: Kedar Damle (Tata Institute of Fundamental Research, Mumbai, India)
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14:30
String nets at finite temperature
25'
Speaker: Julien Vidal (Sorbonne University, Paris, France) Material: Abstract Slides Video -
14:55
A field theory approach to orbital magnetic responses in interacting multi-band systems
25'
Speaker: Mengxing Ye (University of Utah, USA) Material: Abstract Slides Video -
15:20
Closing remarks
10'
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14:30
String nets at finite temperature
25'
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09:00 - 11:30