Recoil-induced errors and their correction in photon-mediated entanglement between atom qubits

• URL: http://arxiv.org/abs/2503.16837v2
• Date: Tue, 25 Mar 2025 17:53:58 GMT
• Title: Recoil-induced errors and their correction in photon-mediated entanglement between atom qubits
• Authors: Jan Apolín, David P. Nadlinger,
• Abstract summary: We study the effects of atomic motion on spontaneous emission coupled into arbitrary optical modes.<n>We arrive at a coherent physical picture in the form of "kick operators" associated with each instant in the photonic wavepackets.<n>This proposed correction technique removes overheads associated with the thermal motion of atoms, and may greatly increase entanglement rates in long-distance quantum network links.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Photonically-interconnected matter qubit systems have wide-ranging applications across quantum science and technology, with entanglement between distant qubits serving as a universal resource. While state-of-the-art heralded entanglement generation performance thus far has been achieved in trapped atomic systems modelled as stationary emitters, the improvements to fidelities and generation rates demanded by large-scale applications require taking into account their motional degrees of freedom. Here, we derive the effects of atomic motion on spontaneous emission coupled into arbitrary optical modes, and study the implications for commonly-used atom-atom entanglement protocols. We arrive at a coherent physical picture in the form of "kick operators" associated with each instant in the photonic wavepackets, which also suggests a method to mitigate motional errors by disentangling qubit and motion post-herald. This proposed correction technique removes overheads associated with the thermal motion of atoms, and may greatly increase entanglement rates in long-distance quantum network links by allowing single-photon-based protocols to be used in the high-fidelity regime.

Related papers

• Taming Recoil Effect in Cavity-Assisted Quantum Interconnects [1.2233362977312945]
  We derive an analytical model for evaluating the motion-induced infidelity in remote entanglement generation protocols.<n>Our results establish a concrete path towards fault-tolerant quantum networking with scalable trapped-atom qubit systems.
  arXiv  Detail & Related papers  (2025-02-20T18:59:11Z)
• Nonlinear dynamical Casimir effect and Unruh entanglement in waveguide QED with parametrically modulated coupling [83.88591755871734]
  We study theoretically an array of two-level qubits moving relative to a one-dimensional waveguide. When the frequency of this motion approaches twice the qubit resonance frequency, it induces parametric generation of photons and excitation of the qubits. We develop a comprehensive general theoretical framework that incorporates both perturbative diagrammatic techniques and a rigorous master-equation approach.
  arXiv  Detail & Related papers  (2024-08-30T15:54:33Z)
• Engineering interactions by collective coupling of atom pairs to cavity photons for entanglement generation [0.0]
  Engineering atom-atom interactions is essential for controlling novel phases of matter and for efficient preparation of many-body entangled states.<n>We show that induced atom-photon interactions can generate robust many-body entanglement in two-mode ultracold bosons.<n>Our results pave the way for engineering atom-atom interactions to study novel phases of light and matter in hybrid atom-photon systems.
  arXiv  Detail & Related papers  (2024-06-20T16:23:05Z)
• A Hybrid Approach to Mitigate Errors in Linear Photonic Bell-State Measurement for Quantum Interconnects [0.0]
  We introduce a novel hybrid detection scheme for Bell-state measurement. We derive explicit fidelities for quantum teleportation and entanglement swapping processes. This work provides a new tool for linear optics schemes, with applications to quantum state engineering and quantum interconnects.
  arXiv  Detail & Related papers  (2024-06-14T18:00:00Z)
• Optical single-shot readout of spin qubits in silicon [41.94295877935867]
  silicon nanofabrication offers unique advantages for integration and up-scaling. Small spin-qubit registers have exceeded error-correction thresholds, their connection to large quantum computers is an outstanding challenge. We implement such an efficient spin-photon interface based on erbium dopants in a nanophotonic resonator.
  arXiv  Detail & Related papers  (2024-05-08T18:30:21Z)
• Atomic diffraction from single-photon transitions in gravity and Standard-Model extensions [49.26431084736478]
  We study single-photon transitions, both magnetically-induced and direct ones, in gravity and Standard-Model extensions. We take into account relativistic effects like the coupling of internal to center-of-mass degrees of freedom, induced by the mass defect.
  arXiv  Detail & Related papers  (2023-09-05T08:51:42Z)
• Experimental realization of deterministic and selective photon addition in a bosonic mode assisted by an ancillary qubit [50.591267188664666]
  Bosonic quantum error correcting codes are primarily designed to protect against single-photon loss. Error correction requires a recovery operation that maps the error states -- which have opposite parity -- back onto the code states. Here, we realize a collection of photon-number-selective, simultaneous photon addition operations on a bosonic mode.
  arXiv  Detail & Related papers  (2022-12-22T23:32:21Z)
• Efficient High-Fidelity Flying Qubit Shaping [0.0]
  We formulate a theory for stimulated Raman emission which is applicable to a wide range of physical systems. We find the upper bound for the photonic pulse emission efficiency of arbitrary matter qubit states for imperfect emitters. Protocols for the production of time-bin encoding and spin-photon entanglement are proposed.
  arXiv  Detail & Related papers  (2022-12-21T17:19:39Z)
• An integrated photonic engine for programmable atomic control [29.81784450632149]
  Miniaturization of optical components has pushed the scale and performance of classical and quantum optics far beyond the limitations of bulk devices. We propose and implement a scalable and reconfigurable photonic architecture for multi-channel quantum control using integrated, visible-light modulators.
  arXiv  Detail & Related papers  (2022-08-13T21:12:37Z)
• Correlated steady states and Raman lasing in continuously pumped and probed atomic ensembles [68.8204255655161]
  We consider an ensemble of Alkali atoms that are continuously optically pumped and probed. Due to the collective scattering of photons at large optical depth, the steady state of atoms does not correspond to an uncorrelated tensor-product state. We find and characterize regimes of Raman lasing, akin to the model of a superradiant laser.
  arXiv  Detail & Related papers  (2022-05-10T06:54:54Z)
• Qubit-photon bound states in topological waveguides with long-range hoppings [62.997667081978825]
  Quantum emitters interacting with photonic band-gap materials lead to the appearance of qubit-photon bound states. We study the features of the qubit-photon bound states when the emitters couple to the bulk modes in the different phases. We consider the coupling of emitters to the edge modes appearing in the different topological phases.
  arXiv  Detail & Related papers  (2021-05-26T10:57:21Z)
• Experimental implementation of precisely tailored light-matter interaction via inverse engineering [5.131683740032632]
  shortcuts to adiabaticity, originally proposed to speed up slow adiabatic process, have nowadays become versatile toolboxes. Here, we implement fast and robust control for the state preparation and state engineering in a rare-earth ions system. We demonstrate that our protocols surpass the conventional adiabatic schemes, by reducing the decoherence from the excited state decay and inhomogeneous broadening.
  arXiv  Detail & Related papers  (2021-01-29T08:17:01Z)
• Inverse-designed photon extractors for optically addressable defect qubits [48.7576911714538]
  Inverse-design optimization of photonic devices enables unprecedented flexibility in tailoring critical parameters of a spin-photon interface. Inverse-designed devices will enable realization of scalable arrays of single-photon emitters, rapid characterization of new quantum emitters, sensing and efficient heralded entanglement schemes.
  arXiv  Detail & Related papers  (2020-07-24T04:30:14Z)

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.