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23 papers · 1 filter
Dissipative phase transition of interacting non-reciprocal fermions
Rafael D. Soares, Matteo Brunelli, Marco Schirò
While non-reciprocal couplings are ubiquitous in classical systems, their impact on quantum many-body criticality and entanglement remains largely unexplored. Using exact numerical…
Anticoncentration in Clifford Circuits and Beyond: From Random Tensor Networks to Pseudo-Magic States
Beatrice Magni, Alexios Christopoulos, Andrea De Luca +1
Anticoncentration describes how an ensemble of quantum states spreads over the allowed Hilbert space, leading to statistically uniform output probability distributions. In this wor…
Protecting collective qubits from non-Markovian dephasing
Antoine Covolo, Valentin Magro, Mathieu Girard +2
Collectively-encoded qubits, involving ensembles of atomic or solid-state emitters, present many practical advantages for quantum technologies. However, they suffer from uncontroll…
Entanglement growth in the dark intervals of a locally monitored free-fermion chain
Giovanni Di Fresco, Youenn Le Gal, Davide Valenti +2
We consider a free fermionic chain with monitoring of the particle density on a single site of the chain and study the entanglement dynamics of quantum jump trajectories. We show t…
Noisy certification of continuous variables graph states
Éloi Descamps, Damian Markham
Continuous variables (CV) offer a promising platform for the development of various applications, such as quantum communication, computing, and sensing, and CV graph states represe…
Quantum Mpemba Effect in Random Circuits
Xhek Turkeshi, Pasquale Calabrese, Andrea De Luca
The essence of the Mpemba effect is that non-equilibrium systems may relax faster the further they are from their equilibrium configuration. In the quantum realm, this phenomenon a…