176 citations · 1.7k across the 56 of their papers we have counts for
56 papers
Theory of Measurement-Altered Criticality
Kabir Khanna, Sara Murciano, Romain Vasseur
Local measurements can alter long-range correlations in gapless quantum matter. We propose a theory of weakly-monitored Tomonaga-Luttinger liquids, a broad class of quantum critica…
Higher-order Symmetric Quantum Mpemba Effect in Fragmented Systems
Sreemayee Aditya, Sara Murciano, Xhek Turkeshi
A quantum system can restore a broken symmetry faster the more strongly it initially breaks it, an anomaly known as the quantum Mpemba effect. Whether this effect survives once con…
Long-range deformations in Gaussian States
Francisco Pereira, Nandagopal Manoj, Sara Murciano
Imaginary-time evolution by a local Hamiltonian cannot induce a phase transition in one dimension, but longer-range interactions may subvert such constraints. Starting from the gro…
Quantum Fisher Information under decoherence with explicit wavefunctions
Francesco Musso, Vittorio Vitale, Sara Murciano
We present a method to estimate the quantum Fisher information (QFI) of many-body quantum states in the presence of decoherence, where its direct evaluation requires the full spect…
Enhancing entanglement asymmetry in fragmented quantum systems
Lorenzo Gotta, Filiberto Ares, Sara Murciano
Entanglement asymmetry provides a quantitative measure of symmetry breaking in many-body quantum states. Focusing on inhomogeneous charges, such as dipole and multipole mome…
An asymmetry lower bound on fermionic non-Gaussianity
Filiberto Ares, Michele Mazzoni, Sara Murciano +3
Fermionic Gaussian states are a fundamental tool in many-body physics, faithfully representing non-interacting quantum systems and allowing for efficient numerical simulations. Giv…
Quantum logic control and entanglement in hybrid atom-molecule arrays
Chi Zhang, Sara Murciano, Nathanan Tantivasadakarn +1
Polar molecules, with their rich internal structure, offer immense potential for fundamental physics, quantum technology, and controlled chemistry. However, their utilization is cu…
Experimental observation of conformal field theory spectra
Xiangkai Sun, Yuan Le, Stephen Naus +6
Conformal field theories (CFTs) feature prominently in high-energy physics, statistical mechanics, and condensed matter. For example, CFTs govern emergent universal properties of s…
Quantum sensing with critical systems: impact of symmetry, imperfections, and decoherence
Yinan Chen, Sara Murciano, Pablo Sala +1
Entangled many-body states enable high-precision quantum sensing beyond the standard quantum limit. We develop interferometric sensing protocols based on quantum critical wavefunct…
Entanglement asymmetry in gauge theories: chiral anomaly in the finite temperature massless Schwinger model
Adrien Florio, Sara Murciano
The entanglement asymmetry has emerged in recent years as a practical quantity to study phases of matter. We present the first study of entanglement asymmetry in gauge theories by…
Universal properties of the many-body Lanczos algorithm at finite size
Luca Capizzi, Leonardo Mazza, Sara Murciano
We study the universal properties of the Lanczos algorithm applied to finite-size many-body quantum systems. Focusing on autocorrelation functions of local operators and on their i…
Practical roadmap to measurement-altered criticality in Rydberg arrays
Stephen Naus, Yue Liu, Sara Murciano +3
Weak measurements have been predicted to dramatically alter universal properties of quantum critical wavefunctions, though experimental validation remains an open problem. Here we…
The quantum Mpemba effects
Filiberto Ares, Pasquale Calabrese, Sara Murciano
The Mpemba effect, where a hotter system can equilibrate faster than a cooler one, has long been a subject of fascination in classical physics. In the past few years, significant t…
Measurement-induced symmetry restoration and quantum Mpemba effect
Giuseppe Di Giulio, Xhek Turkeshi, Sara Murciano
Monitoring a quantum system can profoundly alter its dynamical properties, leading to nontrivial emergent phenomena. In this work, we demonstrate that dynamical measurements strong…
Entanglement asymmetry dynamics in random quantum circuits
Filiberto Ares, Sara Murciano, Pasquale Calabrese +1
We study the dynamics of entanglement asymmetry in random unitary circuits (RUCs). Focusing on a local charge, we consider symmetric initial states evolved by both local one…
Boundary transitions from a single round of measurements on gapless quantum states
Yue Liu, Sara Murciano, David F. Mross +1
Measurements can qualitatively alter correlations and entanglement emerging in gapless quantum matter. We show how a single round of measurements on gapless quantum systems can, up…
On symmetry-resolved generalized entropies
Fei Yan, Sara Murciano, Pasquale Calabrese +1
Symmetry-resolved entanglement, capturing the refined structure of quantum entanglement in systems with global symmetries, has attracted a lot of attention recently. In this manusc…
Entanglement asymmetry and symmetry defects in boundary conformal field theory
Yuya Kusuki, Sara Murciano, Hirosi Ooguri +1
A state in a quantum system with a given global symmetry, , can be sensitive to the presence of boundaries, which may either preserve or break this symmetry. In this work, we in…
Observable-projected ensembles
Alexey Milekhin, Sara Murciano
Measurements in many-body quantum systems can generate non-trivial phenomena, such as preparation of long-range entangled states, dynamical phase transitions, or measurement-altere…
Entanglement asymmetry in the critical XXZ spin chain
Marco Lastres, Sara Murciano, Filiberto Ares +1
We study the explicit breaking of a symmetry to a subgroup employing the entanglement asymmetry, a recently introduced observable that measures how much symmetries a…
The quantum Mpemba effect in free-fermionic mixed states
Filiberto Ares, Vittorio Vitale, Sara Murciano
Recently, a novel probe to study symmetry breaking, known as entanglement asymmetry, has emerged and has been utilized to explore how symmetry is dynamically restored following qua…
Quantum criticality under imperfect teleportation
Pablo Sala, Sara Murciano, Yue Liu +1
Entanglement, measurement, and classical communication together enable teleportation of quantum states between distant parties, in principle with perfect fidelity. To what extent d…
Entangled multiplets, asymmetry, and quantum Mpemba effect in dissipative systems
Fabio Caceffo, Sara Murciano, Vincenzo Alba
Recently, the entanglement asymmetry emerged as an informative tool to understand dynamical symmetry restoration in out-of-equilibrium quantum many-body systems after a quantum que…
Observing the quantum Mpemba effect in quantum simulations
Lata Kh Joshi, Johannes Franke, Aniket Rath +9
The non-equilibrium physics of many-body quantum systems harbors various unconventional phenomena. In this study, we experimentally investigate one of the most puzzling of these ph…