Geometric Breaking of Quantum Strings in Kagome Rydberg Atom Array

• URL: http://arxiv.org/abs/2410.21135v2
• Date: Sun, 23 Mar 2025 03:02:42 GMT
• Title: Geometric Breaking of Quantum Strings in Kagome Rydberg Atom Array
• Authors: Wei Xu, Xue-Feng Zhang,
• Abstract summary: We use a newly developed quantum Monte Carlo method to simulate a ten times larger scale atom array.<n>The two newly formed strings are suddenly uncorrelated, accompanied by a sudden energy increase.<n>This work can benefit the comprehension of quantum strings and also shed light on the simulation of high-energy physics.
• Score: 8.981753999818055
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Leveraging the rapid development of quantum simulators, the intriguing phenomena of string breaking are observed across various quantum simulation platforms \cite{Rydberg_kagome,qbit_string_breaking}. However, the strings can only be broken by quenching the tension energy due to the system size limitation, such "tensile breaking" behaves quite the same as in one-dimension \cite{ion_string_breaking}. To discover the distinctive properties of quantum strings in two dimensions, we utilize a newly developed quantum Monte Carlo method to simulate a ten times larger scale (743-site) Kagome Rydberg atom array which can be described with U(1) lattice gauge theory. With designed edges, one end of the string can be easily grasped, allowing for clearly observing the dynamics of the dangling gauge charge at the open end. Then, we can drag each end in opposite directions perpendicular to the string. As the separation distance increases, asymptotic freedom-like behavior is detected. Eventually, the string breaks because the distance between both ends surpasses the string's length, so named "geometric breaking". Distinct from "tensile breaking," the two newly formed strings are suddenly uncorrelated, accompanied by a sudden energy increase. Lastly, we study multiple strings and successfully prepare a heart-like superposition state of broken and unbroken quantum strings with three gauge charges attached reminiscent of quarks and gluon. This work can benefit the comprehension of quantum strings and also shed light on the simulation of high-energy physics.

Related papers

• String-Breaking Dynamics in Quantum Adiabatic and Diabatic Processes [30.432877421232842]
  Confinement prohibits isolation of color charges, e.g., quarks, in nature via a process called string breaking. We study the phenomenology of dynamical string breaking induced by a gradual increase of string tension over time. This work holds immediate relevance for studying string breaking in quantum-simulation experiments.
  arXiv  Detail & Related papers  (2024-11-16T01:18:27Z)
• Observation of string breaking on a (2 + 1)D Rydberg quantum simulator [59.63568901264298]
  We report the observation of string breaking in synthetic quantum matter using a programmable quantum simulator. Our work paves a way to explore phenomena in high-energy physics using programmable quantum simulators.
  arXiv  Detail & Related papers  (2024-10-21T22:33:16Z)
• Observation of string-breaking dynamics in a quantum simulator [30.432877421232842]
  String-breaking dynamics play vital role in high-energy particle collisions and early universe evolution. Quantum simulators are expected to outperform classical computing methods. We experimentally demonstrate for the first time, for the first time, the required experimental capabilities to simulate string-breaking dynamics.
  arXiv  Detail & Related papers  (2024-10-17T17:46:07Z)
• Visualizing Dynamics of Charges and Strings in (2+1)D Lattice Gauge Theories [103.95523007319937]
  We study the dynamics of local excitations in a lattice of superconducting qubits. For confined excitations, the magnetic field induces a tension in the string connecting them. Our method allows us to experimentally image string dynamics in a (2+1)D LGT.
  arXiv  Detail & Related papers  (2024-09-25T17:59:05Z)
• Coupled vertical double quantum dots at single-hole occupancy [37.69303106863453]
  We control vertical double quantum dots confined in a double quantum well, silicon-germanium heterostructure. We sense individual charge transitions with a single-hole transistor. tuning the vertical double quantum dot to the (1,1) charge state confines a single hole in each quantum well beneath a single plunger gate.
  arXiv  Detail & Related papers  (2024-01-15T14:46:40Z)
• Quantum non-demolition measurement of an electron spin qubit through its low-energy many-body spin environment [0.0]
  Link from quantum to classical can be made without any "wavefunction collapse" We show that the link can be made without any "wavefunction collapse"
  arXiv  Detail & Related papers  (2023-07-01T11:30:37Z)
• A vertical gate-defined double quantum dot in a strained germanium double quantum well [48.7576911714538]
  Gate-defined quantum dots in silicon-germanium heterostructures have become a compelling platform for quantum computation and simulation. We demonstrate the operation of a gate-defined vertical double quantum dot in a strained germanium double quantum well. We discuss challenges and opportunities and outline potential applications in quantum computing and quantum simulation.
  arXiv  Detail & Related papers  (2023-05-23T13:42:36Z)
• Nonmesonic Quantum Many-Body Scars in a 1D Lattice Gauge Theory [0.0]
  We investigate the meson excitations in quantum many-body scars of a 1D $mathbbZ$ lattice gauge theory coupled to a dynamical spin-$frac12$ chain as a matter field. Our results expand the physics of quantum many-body scars in lattice gauge theories and reveal that the nonmesonic state can also manifest ergodicity breaking.
  arXiv  Detail & Related papers  (2023-03-23T10:16:34Z)
• Bound state of distant photons in waveguide quantum electrodynamics [137.6408511310322]
  Quantum correlations between distant particles remain enigmatic since the birth of quantum mechanics. We predict a novel kind of bound quantum state in the simplest one-dimensional setup of two interacting particles in a box. Such states could be realized in the waveguide quantum electrodynamics platform.
  arXiv  Detail & Related papers  (2023-03-17T09:27:02Z)
• Schr\"odinger cat states of a 16-microgram mechanical oscillator [54.35850218188371]
  The superposition principle is one of the most fundamental principles of quantum mechanics. Here we demonstrate the preparation of a mechanical resonator with an effective mass of 16.2 micrograms in Schr"odinger cat states of motion. We show control over the size and phase of the superposition and investigate the decoherence dynamics of these states.
  arXiv  Detail & Related papers  (2022-11-01T13:29:44Z)
• Experimental limit on non-linear state-dependent terms in quantum theory [110.83289076967895]
  We implement blinded measurement and data analysis with three control bit strings. Control of systematic effects is realized by producing one of the control bit strings with a classical random-bit generator. Our measurements find no evidence for electromagnetic quantum state-dependent non-linearity.
  arXiv  Detail & Related papers  (2022-04-25T18:00:03Z)
• Efficient Bipartite Entanglement Detection Scheme with a Quantum Adversarial Solver [89.80359585967642]
  Proposal reformulates the bipartite entanglement detection as a two-player zero-sum game completed by parameterized quantum circuits. We experimentally implement our protocol on a linear optical network and exhibit its effectiveness to accomplish the bipartite entanglement detection for 5-qubit quantum pure states and 2-qubit quantum mixed states.
  arXiv  Detail & Related papers  (2022-03-15T09:46:45Z)
• Quantum chaos driven by long-range waveguide-mediated interactions [125.99533416395765]
  We study theoretically quantum states of a pair of photons interacting with a finite periodic array of two-level atoms in a waveguide. Our calculation reveals two-polariton eigenstates that have a highly irregular wave-function in real space.
  arXiv  Detail & Related papers  (2020-11-24T07:06:36Z)
• Quantum potential in dust collapse with a negative cosmological constant [0.0]
  We obtain the wave function describing collapsing dust in an anti-de Sitter background, as seen by a co-moving observer. We perform a causal de Broglie-Bohm analysis, and obtain the corresponding quantum potential. An initially collapsing solution with a negative cosmological constant bounces back after reaching a minimum radius.
  arXiv  Detail & Related papers  (2020-07-21T17:43:02Z)
• Quantum Zeno effect appears in stages [64.41511459132334]
  In the quantum Zeno effect, quantum measurements can block the coherent oscillation of a two level system by freezing its state to one of the measurement eigenstates. We show that the onset of the Zeno regime is marked by a $textitcascade of transitions$ in the system dynamics as the measurement strength is increased.
  arXiv  Detail & Related papers  (2020-03-23T18:17:36Z)

This list is automatically generated from the titles and abstracts of the papers in this site.

This site does not guarantee the quality of this site (including all information) and is not responsible for any consequences.