Research
Our research lives at the intersection of statistical mechanics, many-body physics, and quantum information theory. Below you can find a selection of our main research interests and highlights by the group.
Many-body quantum magic
Nonstabilizerness, or magic, is a key resource that distinguishes quantum states amenable to efficient classical simulation from those that are not. We study magic in many-body quantum systems, developing tools to quantify it and understanding its role in quantum phases of matter.
Selected publications:
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Magic spreading in random quantum circuits
Xhek Turkeshi, Emanuele Tirrito, and Piotr Sierant
- Nat. Commun. 16, 2575 (2025)
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Magic of the Heisenberg Picture
Neil Dowling, Pavel Kos, and Xhek Turkeshi
- Phys. Rev. Lett. 135, 050401 (2025)
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Fermionic Magic Resources of Quantum Many-Body Systems
Piotr Sierant, Paolo Stornati, and Xhek Turkeshi
- PRX Quantum 6, 010302 (2025)
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Anticoncentration and Nonstabilizerness Spreading under Ergodic Quantum Dynamics
Emanuele Tirrito, Xhek Turkeshi, and Piotr Sierant
- Phys. Rev. Lett. 135, 220401 (2025)
Quantum circuits
Quantum circuits provide a natural discrete-time framework for studying entanglement, information scrambling, and non-equilibrium phenomena in many-body quantum systems. We use them as minimal models to explore the interplay between quantum resources and computational complexity.
Selected publications:
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A resource theoretical unification of Mpemba effects: classical and quantum
Alessandro Summer, Mattia Moroder, Laetitia P. Bettmann, Xhek Turkeshi, Iman Marvian, John Goold
- Phys. Rev. X 16, 011065 (2026)
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Quantum Mpemba Effect in Random Circuits
Xhek Turkeshi, Pasquale Calabrese, and Andrea De Luca
- Phys. Rev. Lett. 135, 040403 (2025)
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Anticoncentration and State Design of Random Tensor Networks
Guglielmo Lami, Jacopo De Nardis, and Xhek Turkeshi
- Phys. Rev. Lett. 134, 010401 (2025)
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Anticoncentration in Clifford Circuits and Beyond: From Random Tensor Networks to Pseudomagic States
Beatrice Magni, Alexios Christopoulos, Andrea De Luca, Xhek Turkeshi
- Phys. Rev. X 15, 031071 (2025)
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Emergence of Generic Entanglement Structure in Doped Matchgate Circuits
Alessio Paviglianiti, Luca Lumia, Emanuele Tirrito, Alessandro Silva, Mario Collura, Xhek Turkeshi, and Guglielmo Lami
- Phys. Rev. Lett. 135, 020403 (2025)
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Entanglement Growth and Minimal Membranes in (d+1) Random Unitary Circuits
Piotr Sierant, Marco Schirò, Maciej Lewenstein, Xhek Turkeshi
- Phys. Rev. Lett. 131, 230403 (2023)
Monitored quantum dynamics
Measurements can fundamentally alter the dynamics of quantum many-body systems, giving rise to new dynamical phases with no classical counterpart. We study how monitoring shapes entanglement structure and information encoding in quantum circuits and open quantum systems.
Selected publications:
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Multipartite entanglement structure of monitored quantum circuits
Arnau Lira-Solanilla, Xhek Turkeshi, and Silvia Pappalardi
- Phys. Rev. Lett. 135, 080401 (2025)
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Error-Resilience Phase Transitions in Encoding-Decoding Quantum Circuits
Xhek Turkeshi and Piotr Sierant
- Phys. Rev. Lett. 132, 140401 (2024)
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Many-Body Dynamics in Monitored Atomic Gases without Postselection Barrier
Gianluca Passarelli, Xhek Turkeshi, Angelo Russomanno, Procolo Lucignano, Marco Schirò, Rosario Fazio
- Phys. Rev. Lett. 132, 163401 (2024)
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Entanglement Dynamics in Monitored Systems and the Role of Quantum Jumps
Youenn Le Gal, Xhek Turkeshi, and Marco Schirò
- PRX Quantum 5, 030329 (2024)
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Controlling entanglement at absorbing state phase transitions in random circuits
Piotr Sierant and Xhek Turkeshi
- Phys. Rev. Lett 130, 120402 (2023)
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Universal Behavior beyond Multifractality of Wave Functions at Measurement-Induced Phase Transitions
Piotr Sierant and Xhek Turkeshi
- Phys. Rev. Lett. 128, 130605 (2022)
