A5079932987- Quantum many-body systems
- Physics of Superconductivity and Magnetism
- Cold Atom Physics and Bose-Einstein Condensates
- Quantum, superfluid, helium dynamics
- Quantum and electron transport phenomena
- Atomic and Subatomic Physics Research
- Quantum Information and Cryptography
- Black Holes and Theoretical Physics
- Opinion Dynamics and Social Influence
- Diamond and Carbon-based Materials Research
- Particle physics theoretical and experimental studies
- Advanced NMR Techniques and Applications
- Scientific Research and Discoveries
- High-Energy Particle Collisions Research
- Quantum Chromodynamics and Particle Interactions
- Theoretical and Computational Physics
- NMR spectroscopy and applications
Chongqing University
2024-2025
University of Iowa
2021-2025
University of California, Riverside
2015-2020
University of Massachusetts Amherst
2020
The floating phase, a critical incommensurate has been theoretically predicted as potential intermediate phase between crystalline ordered and disordered phases. In this study, we investigate the different quantum phases that arise in ladder arrays comprising up to 92 neutral-atom qubits experimentally observe emergence of phase. We analyze site-resolved Rydberg state densities distribution occurrences. measurement reveals formation domain walls within commensurate which subsequently...
We present a gauge-invariant effective action for the Abelian Higgs model (scalar electrodynamics) with chemical potential $\mu$ on 1+1 dimensional lattice. This formulation provides an expansion in hopping parameter $\kappa$ which we test Monte Carlo simulations broad range of inverse gauge coupling $\beta_{pl}$ and small values scalar self-coupling $\lambda$. In opposite limit infinitely large $\lambda$, partition function can be written as traced product local tensors allows us to write...
Lattice gauge theories are fundamental to our understanding of high-energy physics. Nevertheless, the search for suitable platforms their quantum simulation has proven difficult. We show that Abelian Higgs model in $1+1$ dimensions is a prime candidate an experimental lattice theory. To this end, we use discrete tensor reformulation smoothly connect space-time isotropic version used most numerical simulations continuous-time limit corresponding Hamiltonian formulation. The eigenstates...
We show that the Polyakov loop of two-dimensional lattice Abelian Higgs model can be calculated using tensor renormalization group approach. check accuracy results standard Monte Carlo simulations and find good agreement. energy gap produced by insertion obeys universal finite-size scaling which persists in continuous-time limit. briefly discuss relevance these for quantum simulations.
The O(2) model in Euclidean space-time is the zero-gauge-coupling limit of compact scalar quantum electrodynamics. We obtain a dual representation it called charge representation. study phase transition with truncation to ``spin $S$," where numbers have an absolute value less than or equal $S$. preserves gapless-to-gapped even for smallest spin $S = 1$. 1$ infinite-order Gaussian same critical exponents $\delta$ and $\eta$ as Berezinskii-Kosterlitz-Thouless (BKT) transition, while there are...
We calculate the von Neumann and R\'enyi bipartite entanglement entropy of $O(2)$ model with a chemical potential on $1+1$-dimensional Euclidean lattice open periodic boundary conditions. show that Calabrese-Cardy conformal field theory predictions for leading logarithmic scaling these entropies are consistent central charge $c=1$. This survives time-continuum limit truncations microscopic degrees freedom, modifications which allow us to connect Lagrangian formulation quantum Hamiltonians....
We consider multileg ladders of Rydberg atoms which have been proposed as quantum simulators for the compact Abelian Higgs model (CAHM) in $1+1$ dimensions [Y. Meurice, Phys. Rev. D 104, 094513 (2021)] and modified versions theses such triangular prisms. Starting with physical Hamiltonian analog simulator, we construct translation-invariant effective Hamiltonians by integrating over simulator high-energy states produced blockade mechanism when some are sufficiently close to each other....
We demonstrate that current experiments using cold bosonic atoms trapped in one-dimensional optical lattices and designed to measure the second-order R\'enyi entanglement entropy ${S}_{2}$ can be used verify detailed predictions of conformal field theory (CFT) estimate central charge $c$. discuss adiabatic preparation ground state at half filling small hopping parameter $J/U$, where we expect a CFT with $c=1$. provide two complementary methods subtract classical generated by experimental...
Motivated by recent attempts to quantum simulate lattice models with continuous Abelian symmetries using discrete approximations, we define an extended-O(2) model adding a $\ensuremath{\gamma}\mathrm{cos}(q\ensuremath{\varphi})$ term the ordinary O(2) angular values restricted $2\ensuremath{\pi}$ interval. In $\ensuremath{\gamma}\ensuremath{\rightarrow}\ensuremath{\infty}$ limit, becomes extended $q$-state clock that reduces when $q$ is integer and otherwise continuation of for noninteger...
The floating phase, a critical incommensurate has been theoretically predicted as potential intermediate phase between crystalline ordered and disordered phases. In this study, we investigate the different quantum phases that arise in ladder arrays comprising up to 92 neutral-atom qubits experimentally observe emergence of phase. We analyze site-resolved Rydberg state densities distribution occurrences. measurement reveals formation domain walls within commensurate which subsequently...
We study the fidelity and entanglement entropy for ground states of quantum systems that have infinite-order phase transitions. In particular, we consider O(2) model with a spin-$S$ truncation, where there is an Gaussian (IOG) transition $S = 1$ are Berezinskii-Kosterlitz-Thouless (BKT) transitions \ge 2$. show height peak in susceptibility ($\chi_F$) converges to finite thermodynamic value as power law $1/L$ IOG $1/\ln(L)$ BKT The position $\chi_F$ resides inside gapped both On other hand,...
We investigate the Joule expansion of nonintegrable quantum systems that contain bosons or spinless fermions in one-dimensional lattices. A barrier initially confines particles to be half system a thermal state described by canonical ensemble and is removed at time $t = 0$. properties time-evolved density matrix, diagonal matrix corresponding with an effective temperature determined total energy conservation using exact diagonalization. The weights for match well high initial temperatures...
We consider multileg ladders of Rydberg atoms which have been proposed as quantum simulators for the compact Abelian Higgs model (CAHM) in 1+1 dimensions [Y. Meurice, Phys. Rev. D 104, 094513 (2021)] and modified versions theses such triangular prisms. Starting with physical Hamiltonian analog simulator, we construct translation-invariant effective Hamiltonians by integrating over simulator high-energy states produced blockade mechanism when some are sufficiently close to each others....
Motivated by attempts to quantum simulate lattice models with continuous Abelian symmetries using discrete approximations, we study an extended-O(2) model in two dimensions that differs from the ordinary O(2) addition of explicit symmetry breaking term $\ensuremath{-}{h}_{q}\mathrm{cos}(q\ensuremath{\varphi})$. Its coupling ${h}_{q}$ allows smoothly interpolate between (${h}_{q}=0$) and a $q$-state clock (${h}_{q}\ensuremath{\rightarrow}\ensuremath{\infty}$). In latter case, can also be...
Solid-state systems offer immense untapped potential for simulating exotic quantum phenomena. Here, the authors introduce a solid-state platform analog simulators utilizing $S$=1 spin centers implanted in diamond, interacting through magnetic dipole-dipole interactions. This system exhibits range of phases and critical behaviors that can be controlled by adjusting field orientation centers. Notably, it features floating terminate at Berezinskii--Kosterlitz--Thouless Pokrovsky-Talapov...
The decay width $H\rightarrow b\bar{s}$ is firstly evaluated at leading order perturbation theory in the standard model. result suggests that it difficult to observe this mode because of small compared with other decays Higgs boson. Then based on vector-like singlet model, assuming top partner only mixes third generation quark, we consider contribution from coupling quark its partner. Further results show may rise an extent which LHC experiments can accesses.