Conferences & Schools
Online Workshop: Entanglement in Strongly Correlated Systems Participant, 15/02/2021  26/02/2021 Organised by Centro de Ciencias de Benasque Pedro Pascual 
Virtual Meeting: New perspectives on quantum manybody chaos Participant, 08/02/2021  11/02/2021 Organised by the Royal Society 
Virtual Meeting: ManyBody Physics in Open Quantum Systems Participant, 21/01/2021  29/01/2021 Organised by Princeton Center for Theoretical Science 
Virtual Conference: Frontiers of Quantum Computing and Quantum Dynamics Participant, 19/10/2020  20/10/2020 Organised by Kavli Institute for Theoretical Physics, University of California, Santa Barbara, US 
Virtual Workshop: Dynamics, criticality, and universality in random quantum circuits Participant, 30/09/2020  02/10/2020 Organised by MPIPKS, Dresden, Germany 
Virtual Workshop: Fundamental Aspects of Statistical Mechanics and the Emergence of Thermodynamics in NonEquilibrium Systems Speaker, 21/09/2020  23/09/2020 Organised by DFG Research Unit FOR2692, Germany (Bielefeld University, Forschungszentrum Jülich, Oldenburg University, and Osnabrück University) Program and list of abstracts: HERE. 
Virtual Conference: Localisation 2020 Speaker, 24/08/2020  29/08/2020 Organised by Hokkaido University, Japan Topics:
Talk: Measurementinduced transition in random quantum circuits: from stroboscopic to continuous 
Virtual International Workshop: Realtime Dynamics in Strongly Correlated Quantum Matter Participant, 08/04/2020  09/04/2020 Organised by MPIPKS, Dresden, Germany 
Online workshop: Manybody physics out of equilibrium Participant, 24/03/2020 Organised by MPIPKS, Dresden, Germany 
Physics by the Lake 2019 Tutor & presenter, 12/08/2019  16/08/2019 Venue: The University of Stirling, Stirling, UK Talk: Localisation, ergodicity, and quantum measurements 
Topological Quantum Matter: From LowTemperature Physics to NonEquilibrium Dynamics Participant, 05/08/2019  09/08/2019 Venue: Nordita, Stockholm Talk: Entanglement transition from variablestrength weak measurements 
School and Conference on Complex Quantum Systems out of Equilibrium in ManyBody Physics and Beyond Participant, 27/05/2019  07/06/2019 Venue: Yerevan State University, Yerevan, Armenia 
Conference on Quantum Measurement: Fundamentals, Twists, and Applications Participant, 29/04/2019  04/05/2019 Venue: ICTP, Trieste, Italy Topics:

Summer School on Collective Behaviour in Quantum Matter Participant, 27/08/2018  14/09/2018 Venue: ICTP, Trieste, Italy Topics: Lecturers: 
Lancaster Probability Days 2018 Participant, 22/05/2018  24/05/2018 Venue: Postgraduate Statistics Centre, Lancaster, UK Topics:

Topological Matter in Artificial Gauge Fields Participant, 26/02/2018  02/03/2018 Venue: Max Planck Institute for the Physics of Complex Systems, Dresden, Germany Topics:

2017 Arnold Sommerfeld School: Numerical methods for correlated manybody systems Participant, 11/09/2017  15/09/2017 Venue: Arnold Sommerfeld Center for Theoretical Physics, LMU, Munich, Germany Lecturers (and preliminary topics):

International Conference on Strongly Correlated Electron Systems 2017 (SCES2017) Participant, 16/07/2017  21/07/2017 Venue: Clarion Congress Hotel Prague, Prague, Czech Republic Poster: Chargedensitywave phases of a onedimensional model with longrange repulsive interactions 
The 35th International Symposium on Lattice Field Theory (Lattice 2017) Participant, 18/06/2017  24/06/2017 Venue: Palacio de Congresos de Granada, Granada, Spain Poster: Chargedensitywave phases of a onedimensional model with longrange repulsive interactions Abstract: We construct a matrix product operator representation of the Hamiltonian of the tV model. Using the matrix product states (MPS) approach we go beyond the atomic limit, where the phase diagrams are much richer. MPS method is especially problematic near the transition between two different chargedensitywave phases and we show how the bond dimension must be increased in order to converge the results. Our results indicate that the number of possible insulating phases grows with both the maximum interaction range and the fermion density and may cause the loss of insulating properties of the material at finite temperatures. References: 
N8 HPC Network Event  New approaches to atomistic / quantum simulation of materials Speaker, 07/01/2017 Venue: The Bar Convent, York, UK Talk: Effects of strain in graphene/hexagonalboronnitride heterostructures 
The 34th International Symposium on Lattice Field Theory (Lattice 2016) Participant, 24/07/2016  30/07/2016 Venue: University of Southampton, Southampton, UK Poster: Fermions with longrange interactions using a matrixproductstates approach Abstract: References: 
NoWNano Summer Conference 2016 Speaker, 27/06/2016  30/06/2016 Venue: Cranage Hall, Cheshire, UK Talk: Diffusion Monte Carlo study of charge carrier complexes in twodimensional semiconductors 
CPP5 and N8 HPC Network Event  New approaches to atomistic / quantum simulation of materials Speaker, 08/01/2016 Venue: The Bar Convent, York, UK Talk: Diffusion Monte Carlo study of charge carrier complexes in twodimensional semiconductors 
Psik 2015 Conference Speaker, 06/09/2015  11/09/2015 Venue: Kursaal Event Centre, San Sebastian / Donostia, Spain Talk: Diffusion Monte Carlo study of charge carrier complexes in twodimensional semiconductors Abstract: 
The 33rd International Symposium on Lattice Field Theory (Lattice 2015) Participant, 13/07/2015  18/07/2015 Venue: Kobe International Conference Center, Kobe, Japan Poster: Strong coupling expansion of the $t$$V$ model (further results) Abstract: References: 
Tensor Network Summer School 2015 Participant, 01/06/2015  05/06/2015 Venue: Ghent University, Ghent, Belgium Topics:

International Conference on Strongly Correlated Electron Systems 2014 Participant, 07/07/2014  11/07/2014 Venue: Campus Saint Martin d'Heres, Grenoble, France Poster: Generalised $t$$V$ model in one dimension Abstract: References: 
The 32nd International Symposium on Lattice Field Theory (Lattice 2014) Speaker, 22/06/2014  28/06/2014 Venue: Columbia University, New York, US Talk: Lattice Hamiltonian approach to the Schwinger model Abstract: 
NoWNano Summer Conference 2014 Participant, 09/06/2014  11/06/2014 Venue: Cranage Hall, Cheshire, UK 
NoWNano Summer Conference 2013 Participant, 17/06/2013  20/06/2013 Venue: Cranage Hall, Cheshire, UK 
The 34th International Symposium on Lattice Field Theory (Lattice 2016)
Participant, 24/07/2016 – 30/07/2016
Venue: University of Southampton, Southampton, UK
Poster: Fermions with longrange interactions using a matrixproductstates approach
M. Szyniszewski
Abstract:
The longrange tV model of fermions on a lattice is known to exhibit a transition between a Luttinger liquid phase and a Mott insulator phase [1]. At insulating densities, one can tailor the potential energy of the model in such a way that one forces a quantum phase transition to either another insulating chargedensitywave phase, a bondorder phase or a Luttinger liquid [2]. We show how to construct a matrix product operator representation of the Hamiltonian of the tV model and we present phase diagrams calculated using the matrixproductstates approach [3]. We compare these phase diagrams with results obtained in the atomic limit.
References: [1] G. GómezSantos, Phys. Rev. Lett. 70, 3780 (1993). [2] P. Schmitteckert and R. Werner, Phys. Rev. B 69, 195115 (2004); T. Mishra et al., Phys. Rev. B 84, 115135 (2011). [3] D. PerezGarcia et al., Quantum Inf. Comput. 7, 401 (2007); F. Verstraete et al., Adv. Phys. 57, 143 (2008).  POSTER 
NoWNano Summer Conference 2016
Speaker, 27/06/2016 – 30/06/2016
Venue: Cranage Hall, Cheshire, UK
Talk: Diffusion Monte Carlo study of charge carrier complexes in twodimensional semiconductors
M. Szyniszewski, E. Mostaani, C. Price, R. Maezono, N. Drummond, V. Fal’ko
N8 HPC Network Event – New approaches to atomistic / quantum simulation of materials
Speaker, 08/01/2016
Venue: The Bar Convent, York, UK
Talk: Diffusion Monte Carlo study of charge carrier complexes in twodimensional semiconductors
M. Szyniszewski, E. Mostaani, C. Price, R. Maezono, N. Drummond, V. Fal’ko
Psik 2015 Conference
Speaker, 06/09/2015 – 11/09/2015
Venue: Kursaal Event Centre, San Sebastian / Donostia, Spain
Talk: Diffusion Monte Carlo study of charge carrier complexes in twodimensional semiconductors
M. Szyniszewski, E. Mostaani, N. Drummond, V. Fal’ko
Abstract:
We use a novel description of the interaction between charges in twodimensional (2D) semiconductors to investigate the binding properties of two, three and fourparticle complexes of charge carriers (excitons, trions and biexcitons). We report binding energies and pair distribution functions calculated using diffusion quantum Monte Carlo methods, which are exact for these systems. Our results will enable the interpretation of experimental photoabsorption and photoluminescence measurements on 2D transitionmetal dichalcogenide materials. We show that our data are consistent with previous bindingenergy data for the limits in which the interactions between charges reduce to logarithmic and Coulomb (1/r) forms. We find that the logarithmic interaction that has previously been used to study excitons and trions in 2D semiconductors provides an inadequate description of the behaviour of systems such as molybdenum disulphide, and we provide accurate bindingenergy data for excitons, trions and biexcitons in these materials.
Grant: IOP Research Student Conference Fund awarded by IOP Computational Physics Group; Psik Conference Financial Support.PRESENTATION
The 33rd International Symposium on Lattice Field Theory (Lattice 2015)
Participant, 13/07/2015 – 18/07/2015
Venue: Kobe International Conference Center, Kobe, Japan
Poster: Strong coupling expansion of the tV model (further results)
M. Szyniszewski, E. Burovski
Abstract:
We employ a strong coupling expansion – similar to the one used in the lattice field theory studies [1] – to solve the onedimensional extended tV model of fermions on a lattice [2]. This model is solved for a range of filling factors, including both commensurate – where a charge density wave is present – and incommensurate densities. The first set consists not only of a trivial case of half filling. The method allows us to trace the transition from a Luttinger liquid phase to a Mott insulating phase and calculate the critical parameter K. This simple yet powerful method is not based on Bethe ansatz and it works for both integrable and nonintegrable systems. Furthermore, we investigate how tailoring the interaction can introduce other ordered phases of the system [3].
References: [1] C.J. Hamer, Phys. Lett. B 82, 7578 (1979); D.P. Crewther, C.J. Hamer, Nucl. Phys. B 170, 353368 (1980). [2] G. GómezSantos, Phys. Rev. Lett. 70, 3780 (1993); R.G. Dias, Phys. Rev. B 62, 7791 (2000). [3] P. Schmitteckert, R. Werner, Phys. Rev. B 69, 195115 (2004); T. Mishra et al., Phys. Rev. B 84, 115135 (2011).  POSTER 
Tensor Network Summer School 2015
Participant, 01/06/2015 – 05/06/2015
Venue: Ghent University, Ghent, Belgium
Topics:
– matrix product states (MPS)
– projected entangled pair states (PEPS)
– multiscale entanglement renormalization ansatz (MERA)
Travel grant: Lancaster University Graduate School Travel Grant GSTG1576.
International Conference on Strongly Correlated Electron Systems 2014
Participant, 07/07/2014 – 11/07/2014
Venue: Campus Saint Martin d’Hères, Grenoble, France
Poster: Generalised tV model in one dimension
M. Szyniszewski, E. Burovski
Abstract:
We use a strong coupling expansion [1] to solve the onedimensional extended t‑V model of fermions [2,3]. The model is solved for a range of densities, including both commensurate – where a charge density wave is present – and incommensurate densities. The first set consists not only of a trivial case of half filling. The method allows us to trace the transition from a Luttinger liquid phase to a Mott insulating phase. This simple yet powerful method is not based on Bethe ansatz and it works for both integrable and nonintegrable systems.
References: [1] C.J. Hamer, Phys. Lett. B, 82, 7578 (1979). [2] G. GómezSantos, Phys. Rev. Lett., 70, 3780 (1993). [3] R.G. Dias, Phys. Rev. B, 62, 7791 (2000).  POSTER 
Travel grant: Lancaster University Graduate School Travel Grant GSTG1426.
The 32nd International Symposium on Lattice Field Theory (Lattice 2014)
Speaker, 22/06/2014 – 28/06/2014
Venue: Columbia University, New York, US
Talk: Lattice Hamiltonian approach to the Schwinger model
K. Cichy, A. KujawaCichy, M. Szyniszewski
Abstract:
We employ exact diagonalization with strong coupling expansion to the massless and massive Schwinger model. For the massless case, this allows us for a high accuracy continuum limit estimation of the ground state energy and scalar and vector mass gaps with precisions of the order of one part per billion or better. Furthermore, we investigate the chiral condensate and compare our calculations to previous results available in the literature. Oscillations of the chiral condensate which are present while increasing the expansion order are also studied and are shown to be directly linked to the presence of flux loops in the system.
PRESENTATION
NoWNano Summer Conference 2014 Participant, 09/06/2014 – 11/06/2014 Venue: Cranage Hall, Cheshire, UK  POSTER 
NoWNano Summer Conference 2013 Participant, 17/06/2013 – 20/06/2013 Venue: Cranage Hall, Cheshire, UKPOSTER 
Outreach Events
British Science Week Organiser, 18/03/2015 Sackville Street Building, University of Manchester Activities:

Science Spectacular Organiser, 25/10/2014 Whitworth Hall / Museum, University of Manchester Activities:

National Science and Engineering Week Organiser, 21/03/2014 Sackville Street Building, University of Manchester Activities:

Meet the Nanoscientist Organiser, 09/02/2013 Museum of Science and Industry, Manchester Activities:
