Quantum engineering with ultracold polar molecules using trap-induced resonances

• URL: http://arxiv.org/abs/2603.28270v1
• Date: Mon, 30 Mar 2026 10:53:59 GMT
• Title: Quantum engineering with ultracold polar molecules using trap-induced resonances
• Abstract summary: Motional dephasing is typically seen as an obstacle in quantum computing scenarios.<n>We consider using the trap structure as a resource for implementing efficient quantum gates.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Polar molecules represent a promising platform for quantum simulation and computation protocols. Highly controllable arrays of optical tweezers are now accessible in experiments, allowing for unprecedented control of individual molecules. Motional dephasing is typically seen as an obstacle in quantum computing scenarios. Here, we instead consider using the trap structure as a resource for implementing efficient quantum gates. By numerically solving the two-body problem of dipoles trapped in separate tweezers, we identify trap-induced resonances that can serve as the mechanism for achieving state-dependent dynamics and can be further utilized for quantum sensing.

Related papers

• Asymmetric quantum Rabi model, trap-dipole resonance, and quantum gates with optically trapped ultracold polar molecules [18.425228375218236]
  We study the impact of quantized motion on quantum computing based on polar molecules.<n>We introduce two gate protocols, a fast iSWAP gate which can be realized by a global microwave pulse of pulse area smaller than $2$, and a controlled-phase gate with an arbitrary controlled phase.
  arXiv  Detail & Related papers  (2026-05-21T10:23:27Z)
• Scalable platform for qudit-based quantum computing using polar molecules [0.5384718724090648]
  Entangling gates between qudits are implemented via moving molecule in optical traps.<n>We develop encoding schemes that map single qubits (d=2) into qudits of dimensions 2 = d = 5, and pairs of qubits into higher-dimensional qudits with d=4, 5.
  arXiv  Detail & Related papers  (2025-08-14T17:20:10Z)
• Phase transitions, symmetries, and tunneling in Kerr parametric oscillators [37.69303106863453]
  We study the onset of ground-state and excited-state quantum phase transitions in KPOs.<n>We identify the critical points associated with quantum phase transitions and analyze their influence on the energy spectrum and tunneling dynamics.<n>Our findings provide insights into the engineering of robust quantum states, quantum dynamics control, and onset of quantum phase transitions with implications for critical quantum sensing.
  arXiv  Detail & Related papers  (2025-04-21T18:00:19Z)
• Long-lived entanglement of molecules in magic-wavelength optical tweezers [41.94295877935867]
  We present the first realisation of a microwave-driven entangling gate between two molecules. We show that the magic-wavelength trap preserves the entanglement, with no measurable decay over 0.5 s. The extension of precise quantum control to complex molecular systems will allow their additional degrees of freedom to be exploited across many domains of quantum science.
  arXiv  Detail & Related papers  (2024-08-27T09:28:56Z)
• Hysteresis and Self-Oscillations in an Artificial Memristive Quantum Neuron [79.16635054977068]
  We study an artificial neuron circuit containing a quantum memristor in the presence of relaxation and dephasing. We demonstrate that this physical principle enables hysteretic behavior of the current-voltage characteristics of the quantum device.
  arXiv  Detail & Related papers  (2024-05-01T16:47:23Z)
• Proof-of-concept Quantum Simulator based on Molecular Spin Qudits [39.28601213393797]
  We show the first prototype quantum simulator based on an ensemble of molecular qudits and a radiofrequency broadband spectrometer. Results represent an important step towards the actual use of molecular spin qudits in quantum technologies.
  arXiv  Detail & Related papers  (2023-09-11T16:33:02Z)
• Quantum process tomography of continuous-variable gates using coherent states [49.299443295581064]
  We demonstrate the use of coherent-state quantum process tomography (csQPT) for a bosonic-mode superconducting circuit. We show results for this method by characterizing a logical quantum gate constructed using displacement and SNAP operations on an encoded qubit.
  arXiv  Detail & Related papers  (2023-03-02T18:08:08Z)
• On-Demand Entanglement of Molecules in a Reconfigurable Optical Tweezer Array [0.0]
  Entanglement is crucial to many quantum applications including quantum information processing, simulation of quantum many-body systems, and quantum-enhanced sensing. Here we demonstrate, for the first time, on-demand entanglement of individually controlled molecules. We realize an entangling two-qubit gate, and use it to deterministically create Bell pairs.
  arXiv  Detail & Related papers  (2022-10-12T15:23:04Z)
• An electrically-driven single-atom `flip-flop' qubit [43.55994393060723]
  Quantum information is encoded in the electron-nuclear states of a phosphorus donor. Results pave the way to the construction of solid-state quantum processors.
  arXiv  Detail & Related papers  (2022-02-09T13:05:12Z)
• Controlling the dynamics of ultracold polar molecules in optical tweezers [0.0]
  We study a prototypical scenario where two interacting polar molecules placed in separate traps are controlled using an external electric field. This enables a quantum computing scheme in which the rotational structure is used to encode the qubit states.
  arXiv  Detail & Related papers  (2021-10-11T18:25:02Z)
• Coarse grained intermolecular interactions on quantum processors [0.0]
  We develop a coarse-grained representation of the electronic response that is ideally suited for determining the ground state of weakly interacting molecules. We demonstrate our method on IBM superconducting quantum processors. We conclude that current-generation quantum hardware is capable of probing energies in this weakly bound but nevertheless chemically ubiquitous and biologically important regime.
  arXiv  Detail & Related papers  (2021-10-03T09:56:47Z)
• Computing molecular excited states on a D-Wave quantum annealer [52.5289706853773]
  We demonstrate the use of a D-Wave quantum annealer for the calculation of excited electronic states of molecular systems. These simulations play an important role in a number of areas, such as photovoltaics, semiconductor technology and nanoscience.
  arXiv  Detail & Related papers  (2021-07-01T01:02:17Z)
• Probing quantum information propagation with out-of-time-ordered correlators [41.12790913835594]
  Small-scale quantum information processors hold the promise to efficiently emulate many-body quantum systems. Here, we demonstrate the measurement of out-of-time-ordered correlators (OTOCs) A central requirement for our experiments is the ability to coherently reverse time evolution.
  arXiv  Detail & Related papers  (2021-02-23T15:29:08Z)
• Information Scrambling in Computationally Complex Quantum Circuits [56.22772134614514]
  We experimentally investigate the dynamics of quantum scrambling on a 53-qubit quantum processor. We show that while operator spreading is captured by an efficient classical model, operator entanglement requires exponentially scaled computational resources to simulate.
  arXiv  Detail & Related papers  (2021-01-21T22:18:49Z)
• Probing the Universality of Topological Defect Formation in a Quantum Annealer: Kibble-Zurek Mechanism and Beyond [46.39654665163597]
  We report on experimental tests of topological defect formation via the one-dimensional transverse-field Ising model. We find that the quantum simulator results can indeed be explained by the KZM for open-system quantum dynamics with phase-flip errors. This implies that the theoretical predictions of the generalized KZM theory, which assumes isolation from the environment, applies beyond its original scope to an open system.
  arXiv  Detail & Related papers  (2020-01-31T02:55:35Z)

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.