Español

Researchers have demonstrated a breakthrough boson sampling method using ultracold atoms in optical lattices

918
2024-05-10 15:55:13
Ver traducción

JILA researcher, National Institute of Standards and Technology (NIST) physicist, physics professor Adam Kaufman and his team at the University of Colorado Boulder, as well as NIST collaborators, demonstrated a new method of cross laser beam lattice sampling using ultracold atoms for boson sampling in two-dimensional optics. This study, recently published in the journal Nature, marks a significant leap in past achievements in computer simulation or photons.



Applying optical tweezers to large-scale Hubbard systems
Researchers used cutting-edge technology, including optical tweezers and advanced cooling methods, to prepare specific patterns of up to 180 strontium atoms in a lattice of 1000 points. By minimizing the motion of atoms and ensuring they remain in the lowest energy state, the team reduced noise and decoherence, which are common challenges in quantum experiments.

Kaufman said, "Optical tweezers have achieved groundbreaking experiments in multibody physics, typically used to study interacting atoms, where atoms are fixed in space and interact over long distances." "However, when particles can both interact and tunnel, and quantum mechanics spreads in space, a fundamental class of multibody problems arises - the so-called 'Hubbard' system. In the early stages of establishing this experiment, our goal was to apply this tweezer paradigm to large-scale Hubbard systems - this article marks the first realization of this vision."

Confirm high fidelity through scaling testing
Due to the complexity of boson sampling, it is not feasible to directly verify the correct sampling task of 180 atomic experiments. To overcome this issue, researchers sampled atoms of different scales and compared the measurement results with simulations of reasonable error models involving intermediate scale experiments.

"We tested with two atoms and we have a good understanding of what is happening. Then, at an intermediate scale where we can still simulate things, we can compare our measurement results with simulations involving reasonable error models in our experiments. On a large scale, we can continuously change the difficulty of the sampling task by controlling the distinguishability of atoms and confirm that there are no major issues," said Aaron Young, the first author and former JILA graduate student.

This work demonstrates the high-quality and programmable preparation, evolution, and detection of atoms in the lattice, which can be applied to atomic interactions, opening up new methods for simulating and studying the behavior of real and poorly known quantum materials.

Source: Laser Net

Recomendaciones relacionadas
  • Unlocking visible femtosecond fiber oscillators: progress in laser science

    The emergence of ultrafast laser pulses marks an important milestone in laser science, triggering astonishing progress in a wide range of disciplines such as industrial applications, energy technology, and life sciences. Among various laser platforms that have been developed, fiber optic femtosecond oscillators are highly praised for their compact design, excellent performance, and cost-effectiven...

    2024-03-28
    Ver traducción
  • Panasonic Launches 3D Short Pulse Fiber Precision Laser Marking Machine LP-ZV

    Recently, Panasonic has launched the latest laser marking technology product - the LP-ZV series, which can provide high-precision and high-efficiency laser marking.Panasonic claims that the LP-ZV series has set a new standard that can bring excellent speed and accuracy in operation, suitable for various applications such as marking text, graphics, barcodes, and 2D code.The company stated that the ...

    2023-11-08
    Ver traducción
  • The University of California has developed a pioneering chip that can simultaneously carry lasers and photonic waveguides

    A team of computer and electrical engineers at UC Santa Barbara, in collaboration with several colleagues at Caltech and another colleague at Anello Photonics, has developed a first-of-its-kind chip that can carry both laser and photonic waveguides. In a paper published in the journal Nature, the team describes how they made the chip and how it worked during testing.With the advent of integrated c...

    2023-08-10
    Ver traducción
  • IPG Japan office and technical center officially opened

    Recently, IPG Photonics, a leading company in the global fiber laser field, announced the official opening of its new office and central technology center in Japan, marking a solid step in the technology giant's strategic deployment in the Asia Pacific region.The opening of this new office not only demonstrates IPG Photonics' high regard for Japan and the entire Asia Pacific market, but also indic...

    2024-07-15
    Ver traducción
  • This laser and optoelectronic component supplier has reached a strategic distribution agreement

    Recently, Laser Components USA, a leading laser and optoelectronic component supplier, announced that it has reached a strategic distribution agreement with Infrasolid, a pioneer in advanced infrared emitter technology.This agreement combines Laser Components USA's extensive distribution network with Infrasolid's innovative infrared product solutions, providing direct replacement products for all ...

    2023-10-24
    Ver traducción