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View article: Delocalized Excitation Transfer in Open Quantum Systems with Long-Range Interactions
Delocalized Excitation Transfer in Open Quantum Systems with Long-Range Interactions Open
The interplay between coherence and system-environment interactions is at the basis of a wide range of phenomena, from quantum information processing to charge and energy transfer in molecular systems, biomolecules, and photochemical mater…
View article: Quantum Simulation of Charge and Exciton Transfer in Multi-mode Models with Engineered Reservoirs
Quantum Simulation of Charge and Exciton Transfer in Multi-mode Models with Engineered Reservoirs Open
Quantum simulation offers a route to study open-system molecular dynamics in non-perturbative regimes by programming the interactions among electronic, vibrational, and environmental degrees of freedom on similar energy scales. Trapped-ion…
View article: Quantum Simulation of Charge and Exciton Transfer in Multi-mode Models using Engineered Reservoirs
Quantum Simulation of Charge and Exciton Transfer in Multi-mode Models using Engineered Reservoirs Open
Quantum simulation offers a route to study open-system molecular dynamics in non-perturbative regimes by programming the interactions among electronic, vibrational, and environmental degrees of freedom on similar energy scales. Trapped-ion…
View article: Monogamy-of-entanglement-inspired protocol for quantifying bipartite entanglement using spin squeezing
Monogamy-of-entanglement-inspired protocol for quantifying bipartite entanglement using spin squeezing Open
Quantum entanglement is an essential resource for quantum science and technology. However, entanglement detection and quantification, via typical entanglement measures such as linear entanglement entropy or negativity, can be a very challe…
View article: Nonreciprocal and long-range three-body interactions in Bose-Einstein condensates induced by optical feedback
Nonreciprocal and long-range three-body interactions in Bose-Einstein condensates induced by optical feedback Open
We propose generating long-range and nonreciprocal three-body interactions in quantum gases via optical feedback. By placing a quasi-two-dimensional Bose-Einstein condensate (BEC) in front of two reflecting mirrors and illuminating it with…
View article: Universal charge and spin Drude weights in one-dimensional Hubbard model
Universal charge and spin Drude weights in one-dimensional Hubbard model Open
The Drude weight (DW) is a paramount quantity that characterizes the quantum transport properties of many-body systems. However, a rigorous understanding and exact computation of DWs, particularly for strongly correlated electrons with dop…
View article: Delocalized Excitation Transfer in Open Quantum Systems with Long-Range Interactions
Delocalized Excitation Transfer in Open Quantum Systems with Long-Range Interactions Open
The interplay between coherence and system-environment interactions is at the basis of a wide range of phenomena, from quantum information processing to charge and energy transfer in molecular systems, biomolecules, and photochemical mater…
View article: Interpreting convolutional neural networks' low-dimensional approximation to quantum spin systems
Interpreting convolutional neural networks' low-dimensional approximation to quantum spin systems Open
Convolutional neural networks (CNNs) have been employed along with variational Monte Carlo methods for finding the ground state of quantum many-body spin systems with great success. However, it remains uncertain how CNNs, with a model comp…
View article: Floquet geometric squeezing in fast-rotating condensates
Floquet geometric squeezing in fast-rotating condensates Open
Constructing and manipulating quantum states in fast-rotating Bose-Einstein condensates (BEC) has long stood as a significant challenge as the rotating speed approaching the critical velocity. Although the recent experiment [Science, 372, …
View article: Trapped-ion quantum simulation of electron transfer models with tunable dissipation
Trapped-ion quantum simulation of electron transfer models with tunable dissipation Open
Electron transfer is at the heart of many fundamental physical, chemical, and biochemical processes essential for life. The exact simulation of these reactions is often hindered by the large number of degrees of freedom and by the essentia…
View article: Exact results of the one-dimensional repulsive Hubbard model
Exact results of the one-dimensional repulsive Hubbard model Open
We present analytical results of the fundamental properties of the one-dimensional (1D) Hubbard model with a repulsive interaction. The new model results with arbitrary external fields include: (I) using the exact solutions of the Bethe an…
View article: Quantum phase transition in a quantum Rabi square with next-nearest-neighbor hopping
Quantum phase transition in a quantum Rabi square with next-nearest-neighbor hopping Open
We propose a quantum Rabi square model where both the nearest-neighbor and the next-nearest-neighbor photon hopping are allowed among four quantum Rabi systems located at the vertices of a square. By tuning the next-nearest hopping strengt…
View article: Engineering and revealing Dirac strings in spinor condensates
Engineering and revealing Dirac strings in spinor condensates Open
Artificial monopoles have been engineered in various systems, yet there has been no systematic study of the singular vector potentials associated with the monopole field. We show that the Dirac string, the line singularity of the vector po…
View article: Phase transition and multistability in Dicke dimer
Phase transition and multistability in Dicke dimer Open
The exotic phase transitions and multistabilities in atom-cavity coupled systems have attracted tremendous interests recently. In this work, we investigate the effect of photon hopping between two Dicke cavities, which induces rich quantum…
View article: Engineering and Revealing Dirac Strings in Spinor Condensates
Engineering and Revealing Dirac Strings in Spinor Condensates Open
Artificial monopoles have been engineered in various systems, yet there has been no systematic study of the singular vector potentials associated with the monopole field. We show that the Dirac string, the line singularity of the vector po…
View article: Exact results of one-dimensional repulsive Hubbard model
Exact results of one-dimensional repulsive Hubbard model Open
We present analytical results of fundamental properties of one-dimensional (1D) Hubbard model with a repulsive interaction, ranging from fractional excitations to universal thermodynamics, interaction-driven criticality, correlation functi…
View article: Tricritical Dicke model with and without dissipation
Tricritical Dicke model with and without dissipation Open
Light-matter interacting systems involving multi-level atoms are appealing platforms for testing equilibrium and dynamical phenomena. Here, we explore a tricritical Dicke model, where an ensemble of three-level systems interacts with a sin…
View article: Perfect intrinsic squeezing at the superradiant phase transition critical point
Perfect intrinsic squeezing at the superradiant phase transition critical point Open
Some of the most exotic properties of the quantum vacuum are predicted in ultrastrongly coupled photon–atom systems; one such property is quantum squeezing leading to suppressed quantum fluctuations of photons and atoms. This squeezing is …
View article: Chiral quantum phases and tricriticality in a Dicke triangle
Chiral quantum phases and tricriticality in a Dicke triangle Open
The existence of quantum tricriticality and exotic phases are found in a tricritical Dicke triangle (TDT) where three cavities, each one containing an ensemble of three-level atoms, are connected to each other through the action of an arti…
View article: Synthetic U(1) gauge invariance in a spin-1 Bose gas
Synthetic U(1) gauge invariance in a spin-1 Bose gas Open
Recent experimental realizations of the U(1) gauge invariance [Nature (London) 587, 392 (2020)10.1038/s41586-020-2910-8; Science 367, 1128 (2020)10.1126/science.aaz5312] open a door for quantum simulation of elementary particles and their …
View article: Perfect intrinsic squeezing at the superradiant phase transition critical point
Perfect intrinsic squeezing at the superradiant phase transition critical point Open
Some of the most exotic properties of the quantum vacuum are predicted in ultrastrongly coupled photon–atom systems; one such property is quantum squeezing leading to suppressed quantum fluctuations of photons and atoms. This squeezing is …
View article: Data for "Spin-charge separation in a 1D Fermi gas with tunable interactions"
Data for "Spin-charge separation in a 1D Fermi gas with tunable interactions" Open
This dataset is corresponding to the article "Spin-charge separation in a 1D Fermi gas with tunable interactions"
View article: Data for "Spin-charge separation in a 1D Fermi gas with tunable interactions"
Data for "Spin-charge separation in a 1D Fermi gas with tunable interactions" Open
This dataset is corresponding to the article "Spin-charge separation in a 1D Fermi gas with tunable interactions"
View article: Data for "Spin-charge separation in a 1D Fermi gas with tunable interactions"
Data for "Spin-charge separation in a 1D Fermi gas with tunable interactions" Open
This dataset is corresponding to the article "Spin-charge separation in a 1D Fermi gas with tunable interactions"
View article: Strongly interacting two-component coupled Bose gas in optical lattices
Strongly interacting two-component coupled Bose gas in optical lattices Open
Two-component coupled Bose gas in a 1D optical lattice is examined. In addition to the postulated Mott insulator and superfluid phases, multiple bosonic components manifest spin degrees of freedom. Coupling of the components in the Bose ga…
View article: Multicriticality and quantum fluctuation in a generalized Dicke model
Multicriticality and quantum fluctuation in a generalized Dicke model Open
We consider an important generalization of the Dicke model in which multi-level atoms, instead of two-level atoms as in conventional Dicke model, interact with a single photonic mode. We explore the phase diagram of a broad class of atom-p…
View article: Quantum Phases in a Quantum Rabi Triangle
Quantum Phases in a Quantum Rabi Triangle Open
The interplay of interactions, symmetries, and gauge fields usually leads to intriguing quantum many-body phases. To explore the nature of emerging phases, we study a quantum Rabi triangle system as an elementary building block for synthes…
View article: Dynamical Fermionization in One-Dimensional Spinor Quantum Gases
Dynamical Fermionization in One-Dimensional Spinor Quantum Gases Open
Dynamical fermionization refers to the phenomenon in Tonks-Girardeau gases where, upon release from harmonic confinement, the gases' momentum density profile evolves asymptotically to that of an ideal Fermi gas in the initial trap. This ph…
View article: Strongly Interacting Two-component Coupled Bose Gas in a 1D Optical Lattice
Strongly Interacting Two-component Coupled Bose Gas in a 1D Optical Lattice Open
Two-component coupled Bose gas in a 1D optical lattice is examined. In addition to the postulated Mott insulator and Superfluid phases, multiple bosonic components manifest spin degrees of freedom. Coupling of the components in the Bose ga…