2.5k citations · 72k across the 717 of their papers we have counts for
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Mean-field validity in a dissipative critical system: Liouvillian gap, -symmetric antigap, and permutational symmetry in the model
Dolf Huybrechts, Fabrizio Minganti, Franco Nori +2
We study the all-to-all connected (anisotropic-Heisenberg) spin model with local and collective dissipations, comparing the results of mean field theory with the solution of…
Probing the dynamical phase transition with a superconducting quantum simulator
Kai Xu, Zheng-Hang Sun, Wuxin Liu +9
Non-equilibrium quantum many-body systems, which are difficult to study via classical computation, have attracted wide interest. Quantum simulation can provide insights into these…
Experimental demonstration of one-shot coherence distillation: High-dimensional state conversions
Shao-Jie Xiong, Zhe Sun, Xiaofeng Li +7
We experimentally investigate problems of one-shot coherence distillation [Regula, Fang, Wang, and Adesso, Phys. Rev. Lett. 121, 010401 (2018)]. Based on a set of optical devices,…
Observing information backflow from controllable non-Markovian multi-channels in diamond
Yanan Lu, Yuran Zhang, Gangqin Liu +3
Any realistic quantum system is inevitably subject to an external environment. This environment makes the open-system dynamics significant for many quantum tech-nologies, such as e…
Waveguide Quantum Electrodynamics with Giant Superconducting Artificial Atoms
Bharath Kannan, Max Ruckriegel, Daniel Campbell +14
Models of light-matter interactions typically invoke the dipole approximation, within which atoms are treated as point-like objects when compared to the wavelength of the electroma…
Acoustic versus electromagnetic field theory: scalar, vector, spinor representations and the emergence of acoustic spin
Lucas Burns, Konstantin Y. Bliokh, Franco Nori +1
We construct a novel Lagrangian representation of acoustic field theory that describes the local vector properties of longitudinal (curl-free) acoustic fields. In particular, this…
Gauge freedom, quantum measurements, and time-dependent interactions in cavity and circuit QED
Alessio Settineri, Omar Di Stefano, David Zueco +3
The interaction between the electromagnetic field inside a cavity and natural or artificial atoms has played a crucial role in developing our understanding of light-matter interact…
Strong Spin Squeezing Induced by Weak Squeezing of Light inside a Cavity
Wei Qin, Ye-Hong Chen, Xin Wang +2
We propose a simple method for generating spin squeezing of atomic ensembles in a Floquet cavity subject to a weak, detuned two-photon driving. We demonstrate that {\it the weak sq…
Dissipation-induced bistability in the two-photon Dicke model
Louis Garbe, Peregrine Wade, Fabrizio Minganti +3
The Dicke model is a paradigmatic quantum-optical model describing the interaction of a collection of two-level systems with a single bosonic mode. Effective implementations of thi…
Eigenstate extraction with neural-network tomography
Abhijeet Melkani, Clemens Gneiting, Franco Nori
We discuss quantum state tomography via a stepwise reconstruction of the eigenstates of the mixed states produced in experiments. Our method is tailored to the experimentally relev…
Simulating ultrastrong-coupling processes breaking parity conservation in Jaynes-Cummings systems
Carlos Sánchez Muñoz, Anton Frisk Kockum, Adam Miranowicz +1
We propose the effective simulation of light-matter ultrastrong-coupling phenomena with strong-coupling systems. Recent theory and experiments have shown that the quantum Rabi Hami…
Atoms in separated resonators can jointly absorb a single photon
Luigi Garziano, Alessandro Ridolfo, Adam Miranowicz +3
The coherent nonlinear process where a single photon simultaneously excites two or more two-level systems (qubits) in a single-mode resonator has recently been theoretically predic…
Quantum and semiclassical exceptional points of a linear system of coupled cavities with losses and gain within the Scully-Lamb laser theory
Ievgen I. Arkhipov, Adam Miranowicz, Fabrizio Minganti +1
In the past few decades, many works have been devoted to the study of exceptional points (EPs), i.e., exotic degeneracies of non-Hermitian systems. The usual approach in those stud…
Quantum exceptional points of non-Hermitian Hamiltonians and Liouvillians: The effects of quantum jumps
Fabrizio Minganti, Adam Miranowicz, Ravindra W. Chhajlany +1
Exceptional points (EPs) correspond to degeneracies of open systems. These are attracting much interest in optics, optoelectronics, plasmonics, and condensed matter physics. In the…
Quantum bits with Josephson junctions
Anton Frisk Kockum, Franco Nori
Already in the first edition of this book (Barone and Paterno, "Fundamentals and Physics and Applications of the Josephson Effect", Wiley 1982), a great number of interesting and i…
A quantum interference capacitor based on double-passage Landau-Zener-Stückelberg-Majorana interferometry
Rubén M. Otxoa, Anasua Chatterjee, Sergey N. Shevchenko +3
The implementation of quantum technologies in electronics leads naturally to the concept of coherent single-electron circuits, in which a single charge is used coherently to provid…
Two-photon blockade and photon-induced tunneling generated by squeezing
Anna Kowalewska-Kudlaszyk, Shilan Ismael Abo, Grzegorz Chimczak +3
Inspired by the recent experiment of Hamsen et al. [Phys. Rev. Lett. 118, 133604 (2017)], which demonstrated two-photon blockade in a driven nonlinear system (composed of a harmoni…
-phonon bundle emission via the anti-Stokes process
Qian Bin, Xin-You Lü, Fabrice P. Laussy +2
We demonstrate theoretically the bundle emission of strongly correlated phonons in an acoustic cavity QED system. The mechanism relies on anti-Stokes resonances that generate s…
Experimental kernel-based quantum machine learning in finite feature space
Karol Bartkiewicz, Clemens Gneiting, Antonín Černoch +3
We implement an all-optical setup demonstrating kernel-based quantum machine learning for two-dimensional classification problems. In this hybrid approach, kernel evaluations are o…
Non-Hermitian Hamiltonians and no-go theorems in quantum information
Chia-Yi Ju, Adam Miranowicz, Guang-Yin Chen +1
Recently, apparent nonphysical implications of non-Hermitian quantum mechanics (NHQM) have been discussed in the literature. In particular, the apparent violation of the no-signali…
Accessing the bath information in open quantum systems with the stochastic c-number Langevin equation method
Zheng-Yang Zhou, Yun-An Yan, Stephen Hughes +2
In traditional open quantum systems, the baths are usually traced out so that only the system information is left in the equations of motion. However, recent studies reveal that us…
Single-photon-triggered quantum chaos
Gui-Lei Zhu, Xin-You Lü, Li-Li Zheng +3
We demonstrate how to manipulate quantum chaos with a single photon in a hybrid quantum device combining cavity QED and optomechanics. Specifically, we show that this system change…
Experimental test of non-macrorealistic cat-states in the cloud
Huan-Yu Ku, Neill Lambert, Fong-Ruei Jhan +3
The Leggett-Garg inequality attempts to classify experimental outcomes as arising from one of two possible classes of physical theories: those described by macrorealism (which obey…
Ultradense Tailored Vortex Pinning Arrays in Superconducting YBaCuO Thin Films Created by Focused He Ion Beam Irradiation for Fluxonics Applications
Bernd Aichner, Benedikt Müller, Max Karrer +9
Magnetic fields penetrate a type-II superconductor as magnetic flux quanta, called vortices. In a clean superconductor they arrange in a hexagonal lattice, while by adding periodic…