Geometric Qubits in Programmable Atomic Trimers
- URL: http://arxiv.org/abs/2607.16846v1
- Date: Sat, 18 Jul 2026 15:04:10 GMT
- Title: Geometric Qubits in Programmable Atomic Trimers
- Abstract summary: Motivated by programmable tweezer arrays, we develop an exactly solvable shape-space theory for near-equilateral atomic trimers.<n>With phase-coherent shape-mode driving and Rydberg-mediated conditional phases, they furnish a candidate route to geometric qubits and entangling operations.
- Score: 0.0
- License: http://creativecommons.org/licenses/by-nc-sa/4.0/
- Abstract: Motivated by programmable tweezer arrays, we develop an exactly solvable shape-space theory for near-equilateral atomic trimers. The Higgs oscillator on Kendall's shape sphere gives a nonresonant spectral lattice whose fixed-angular-momentum relative-stationary minimizers are supported on two adjacent admissible sites. These symmetry-selected doublets are separated from higher relative-stationary branches by a finite branch gap. With phase-coherent shape-mode driving and Rydberg-mediated conditional phases, they furnish a candidate route to geometric qubits and entangling operations.
Related papers
- Geometry-Controlled Exceptional Points in Helicoidal Orbital-Angular-Momentum Photonics [0.0]
Exceptional points (EPs) are non-Hermitian spectral singularities where eigenvalues and eigenvectors coalesce.<n>We propose a geometry-controlled route to EPs in orbital-angular-momentum (OAM) photonics.
arXiv Detail & Related papers (2026-06-20T21:53:12Z) - Manipulation of Topological Corner States via Subchiral Symmetry [6.869213293234872]
Subchiral symmetry provides a general control principle for manipulating topological corner modes.<n>We design adiabatic protocols that transfer either a single corner state or a superposition of two corner states between selected corners.
arXiv Detail & Related papers (2026-06-16T14:29:05Z) - Constructing Arbitrary Coherent Rearrangements in Optical Lattices [36.94429692322632]
Coherent control of motional degrees of freedom of ultracold atoms in optical lattices offers a promising route towards programmable quantum dynamics with massive particles.<n>We propose and analyze a scheme for implementing coherent rearrangement of ultracold atoms, corresponding to arbitrary unitary transformations on single-particle motional states.
arXiv Detail & Related papers (2026-03-04T15:57:12Z) - Symmetry-protected topology and deconfined solitons in a multi-link $\mathbb{Z}_2$ gauge theory [45.88028371034407]
We study a $mathbbZ$ lattice gauge theory defined on a multi-graph with links that can be visualized as great circles of a spherical shell.<n>We show that this leads to state-dependent tunneling amplitudes underlying a phenomenon analogous to the Peierls instability.<n>By performining a detailed analysis based on matrix product states, we prove that charge deconfinement emerges as a consequence of charge-fractionalization.
arXiv Detail & Related papers (2026-03-02T22:59:25Z) - Axis-level Symmetry Detection with Group-Equivariant Representation [48.813587457507786]
Recent heatmap-based approaches can localize potential regions of symmetry axes but often lack precision in identifying individual axes.<n>We propose a novel framework for axis-level detection of the two most common symmetry types-reflection and rotation.<n>Our method achieves state-of-the-art performance, outperforming existing approaches.
arXiv Detail & Related papers (2025-08-14T15:26:53Z) - Qubit encodings for lattices of dipolar planar rotors [39.58317527488534]
We investigate two qubit representations of the planar rotor lattice Hamiltonian.<n>The first representation is realized by decomposing the rotor Hamiltonian projectors in binary and mapping them to spin-1/2 projectors.<n>The second approach relies on embedding the planar rotor lattice Hilbert space in a larger space and recovering the relevant qubit encoded system as a quotient space projecting down to the physical degrees of freedom.
arXiv Detail & Related papers (2025-07-23T21:48:20Z) - Programmable photonic quantum walks on lattices with cyclic, toroidal, and cylindrical topology [0.0]
Photonic implementations of unitary processes on lattice structures, such as quantum walks, have been demonstrated across various architectures.<n>Here, we employ a recently developed platform that enables the implementation of arbitrary translationally invariant unitary operations on one- and two-dimensional lattices.<n>We program our platform to realize quantum walks on 1D cyclic lattices and 2D lattices with cylindrical or toroidal topologies.
arXiv Detail & Related papers (2025-06-23T18:28:35Z) - Controlling Excitation Localization in Waveguide QED Systems [0.4999814847776098]
We study localization and long-time population trapping in quantum emitters coupled to a waveguide.<n>We find two distinct mechanisms that give rise to localization: geometry-induced subradiance and disorder-induced Anderson-like confinement.<n>These results establish geometry and disorder as complementary tools for engineering long-lived quantum states in waveguide QED systems.
arXiv Detail & Related papers (2025-05-27T08:24:51Z) - Quantum anomalous Hall phase in synthetic bilayers via twistless
twistronics [58.720142291102135]
We propose quantum simulators of "twistronic-like" physics based on ultracold atoms and syntheticdimensions.
We show that our system exhibits topologicalband structures under appropriate conditions.
arXiv Detail & Related papers (2020-08-06T19:58:05Z) - Radiative topological biphoton states in modulated qubit arrays [105.54048699217668]
We study topological properties of bound pairs of photons in spatially-modulated qubit arrays coupled to a waveguide.
For open boundary condition, we find exotic topological bound-pair edge states with radiative losses.
By joining two structures with different spatial modulations, we find long-lived interface states which may have applications in storage and quantum information processing.
arXiv Detail & Related papers (2020-02-24T04:44:12Z)
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.