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News


Ludwig gets the Rubicon

13 April 2023

NOW has awarded Ludwig Hoffmann the Rubicon grant. Ludwig will take the grant to the Harvard School of Engineering and Applied Sciences, where he will join the group of Mahadevan. Congratulations Ludwig!

Read the full story here.


Livio wins the Paladin prize

03 November 2021

The 2021 edition of the prize "Giovanni Paladin" of the Società Italiana di Fisica Statistica (Italian Society of Statistical Physics) for the best PhD thesis in the field of Statistical Physics and Complex Systems will be awarded to dr. Livio Nicola Carenza who studied at the University of Bari for his PhD in Theoretical Physics under the surpervision of prof. Giuseppe Gonnella and graduated with the dissertation titled "Confined active fluids: morphology, topological defects and flow behaviors". Check out Livio's award ceremony, featuring 2021 physics Nobel laureate Giorgio Parisi, and seminar.



25 March 2021

A wave of fresh Mediterranean water has brought three new members in our group. Dimitris (from Greece), Jose (from Spain/Catalonia) and Livio (from Italy). Dimitris got his master from the University of Amsterdam, where he worked, under the supervision of Ben Freivogel, on the physics of wormholes in general relativity. Jose, got his master from the University of Barcelona under the supervision of Jaume Casademunt, working on the hydrodynamics of active liquid crystals. Livio got his PhD at the University of Bari in the group of Beppe Gonnella and is an expert of computational fluid dynamics, Lattice-Boltzmann methods and active matter.


Luca awarded NWO Groot grant

12 March 2020

A team including Luca Giomi, Thomas Schmidt (LION) and Erik Danen (LACDR) has received a 3 million euros NWO Science Groot grant to unravel the first steps of metastasis.

Read the full story here.


Luca awarded ERC consolidator

13 December 2019

Luca has been awarded an ERC consolidator grant of 2 milion euro to investigate the hydrodynamics of hexatic liquid crystals, with applications epithelial tissues.

Read the full story here.


Congratulations Dr. Rinaldin!

07 November 2019

Today our beloved Melissa defended her thesis and obtained her well deserved PhD in physics. Melissa will continue her career as a postdoc at Brandeis University under the supervision of Guillaume Duclos and Ben Rogers.

Congratulations Dr. Rinaldin and good luck in the States!


Congratulations Dr. You!

25 June 2019

Today, during one of the warmest day every recorded in Leiden, our beloved Zhihong defended his thesis and obtained his PhD in physics. Zhihong will continue his career as a postdoc in the group of Cristina Marchetti at UCSB.

Congratulations Dr. You and good luck for your American adventure!




Welcome Andrè, Ludwig, Niladri and Richard

09 June 2019

Four new members joined the group during the Spring semester 2019. Niladri Sarkar is a new postdoc, previously working in the group of Pierre Sens at the Curie Institute. Richard Green, a Leiden graduate previously working in the group of Vincenzo Vitelli, is a new DITP postdoc in collaboration with Jan de Boer and Jay Armas at the University of Amsterdam. Ludwig Hoffmann started in April as new PhD student, after getting his Master degree at the University of Leipzig under the supervision of Stefan Hollands. Finally, Andrè van Delft is a new master student.


New paper on PRL

08 June 2019

Our paper "Gometric control of active turbulence on curved topographies", in collaboration with Perry Ellis (Harvard) and Alberto Fernandez-Nieves (Georgia Tech / University of Barcelona), was published on Physical Review Letters.


Lorentz Professor Tom Lubensky

06 May 2018

We are honored to host Tom Lubensky (University of Pennsylvania) as 64th Lorentz Professor. Tom's busy schedule includes three lectures on theoretical elasticity, a workshop at the Lorentz Center on topology and complex fluids a Colloquium Ehrenfestii.

Click here for an interview to Tom about his career and his experience as Lorentz Professor


Welcome Linda!

06 May 2018

Master student Linda Ravazzano, from the University of Milan, joined the group as part of the STREAM program. Linda's research, in collaboration with PhD student Koen Schakenraad, will revolve around unraveling cellular topotaxis with the help of self-propelled particle models.


New paper on Nature Physics

31 October 2017

Our paper "Curvature-induced defect unbinding and dynamics in active nematic toroids", in collaboration with our friends Perry Ellis and Alberto Fernandez-Nieves at Georgia Tech, was published on Nature Physics. Read the announcement on LION website and on Georgia Tech website.


New paper on PNAS

31 October 2017

Our paper "Cross-talk between topological defects in different fields revealed by nematic microfluidics" was published in PNAS. Read the announcement on LION website.


Welcome Ireth!

11 February 2017

Ireth García Aguilar joint the group as new PhD student. Ireth obtained her bachelor in physics from the Universidad de Costa Rica and later move to Europe as a master student in the AtoSiM program. Her current research revolves around shape-shifting droplet and vesicle, with application to biological and biomimetic structures.


Luca awarded Vidi grant

13 May 2016

Luca has been awarded an NWO Vidi grant of 800,000 euro to theoretically investigate artificial cell-like structures.

Links: D-ITP


Welcome Piermarco!

1 April 2016

Piermarco Fonda, from SISSA, joined the group as a new postdoc. Piermarco is a polyhedric theorist with a background in particle physics, string theory and holography and will address various challenging problems in membranes physics. Our long term goal is to find formal connections between the geometrical aspects of holographic entanglement and complex membranes.


Koen wins the Lorentz Afstudeerprijs

24 November 2015

Koen Schakenraad has won this year's Lorentz Afstudeerprijs for his master research on DNA mechanics. The Lorentz Afstudeerprijs (Lorentz graduation prize) is a prize awarded annually by the Royal Holland Society of Sciences and Humanities (KHMW) to a recently graduated theoretical physics master student with an outstanding thesis.

Congratulations Koen!



Links: LION | D-ITP | KHMW.


Welcome Melissa!

24 October 2015

Melissa Rinaldin, from University of Padova, joined the group as a new PhD student. Melissa is a theoretical/experimental biophysicist with expertise on molecular dynamics simulations and experimental membranes biophysics. In synergy with Daniela Kraft's experimental group, Melissa will investigate the interplay between curvature and the organization of lipid domains in membranes supported by colloidal and micro-fabricated scaffolds.


Welcome Zhihong You!

29 August 2015

Zhihong You, from Beijing Normal University, has joined the group as a new PhD student. Zhihong has previously worked on active matter and optics. When he was only an undergraduate Zhihong developed a new method to measure the refractive index of a liquid by analyzing how light is scattered when the liquid is confined in a capillary. Check out Zhihong's optics papers on American Journal of Physics and Applied Optics.


Joint theoretical/experimental PhD position available

3 August 2015

One PhD position is available for a joint project between the groups of Luca Giomi and Daniela Kraft at the Casimir Research School at Leiden University.

The project will investigate the interplay between curvature and the organization of lipid domains in membranes supported by colloidal and micro-fabricated scaffolds. The student will use a combined experimental and computational approach to develop a fundamental framework and unravel the biologically relevant correlation between local geometry and membrane composition.

The four year position is available immediately, with latest starting date in June 2016. Candidates should hold an MSc degree in physics, physical chemistry or material science, and should have affinity for experimental and computational work in soft matter.


Welcome Daniel Pearce!

11 March 2015

Daniel Pearce, former graduate student at the University of Warwick has joined the group as a new post-doc. Daniel is an expert of collective behavior and has recently proposed a number of innovating ideas about bird flocking. Check out Daniel talking about his PhD work on flocking on BBC.



Koen Schakenraad will join the group on April 1st

7 March 2015

Koen Schakenraad, from TU Eindhoven, will join the group as a new Huygens fellow. Koen's PhD research will focus on cell mechanics and will be performed in collaboration with Roeland Merks at the Mathematical Institute.


One postdoc and one PhD position available

13 October 2014

One postdoc and one PhD position is available. The candidate should be comfortable with both analytical and numerical methods. Qualified persons are advised to send their CV and names of references. The appointment can start at anytime.


From liquid crystals to proto-cells

5 September 2014

Our paper "Topology and dynamics of active nematic vesicles" (Keber et al., Science 345, 1135) has been selected as cover story in Science. The paper, is the result of an enthusiastic collaboration with the experimental groups of Andreas Bausch (Technische Universität München) and Zvonimir Dogic (Brandeis University).


The ideal sperm swim team

23 July 2014

Our paper "The dynamics of sperm cooperation in a competitive environment", in collaboration with Heidi Fisher, Hopi Hoekstra and L. Mahadevan (Fisher et al. Proc. R. Soc. B 281, 20140296), has been featured by National Geographic and Science News.


Active droplets on the cover of PRL

10 April 2014

Our paper "Spontaneous division and motility in active nematic droplets" (Giomi and DeSimone, Phys. Rev. Lett. 112, 147802) has been selected as cover story in Physical Review Letter. The paper has also been featured by Physics Today, Kurzweil, and Phys.org


The invasion of Bristle-Bots

23 February 2013

A great video by Nico Hawley-Weld about the collective dynamics of Bristle-Bots is now available on Youtube. Enjoy it here!