Magnifying the Wave Function of Interacting Fermionic Atoms

• URL: http://arxiv.org/abs/2409.18954v1
• Date: Fri, 27 Sep 2024 17:57:40 GMT
• Title: Magnifying the Wave Function of Interacting Fermionic Atoms
• Authors: Sandra Brandstetter, Carl Heintze, Keerthan Subramanian, Paul Hill, Philipp M. Preiss, Maciej Gałka, Selim Jochim,
• Abstract summary: We present a matterwave magnification scheme, based on evolutions in optical potentials, tailored to magnify the wave function of atoms. To showcase this method, we image atoms in the strongly interacting regime, establishing a new way to characterize correlated systems.
• Score: 4.790438196495298
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Understanding many body systems is a key challenge in physics. Single atom resolved imaging techniques have unlocked access to microscopic correlations in ultracold quantum gases. However they cannot be used when the relevant length scales are obscured by the resolution of the detection technique. We present a matterwave magnification scheme, based on evolutions in optical potentials, tailored to magnify the wave function of atoms, such that all length scales can be resolved. To showcase this method, we image atoms in the strongly interacting regime, establishing a new way to characterize correlated systems.

Related papers

• Optomechanical self-organization in a mesoscopic atom array [0.0]
  We study mesoscopic signatures of a spatial self-organization phase transition in deterministically prepared arrays of between 10 and 22 atoms inside an optical cavity. Through precise engineering of the atom-cavity interactions, we reveal how critical behavior depends on atom number. This work opens the door to probing particle-number- and time-resolved properties of phase transitions in mesoscopic systems.
  arXiv  Detail & Related papers  (2024-10-16T17:18:15Z)
• In-situ Imaging of a Single-Atom Wave Packet in Continuous Space [0.0]
  We use quantum gas microscopy to image the in-situ spatial distribution of deterministically prepared single-atom wave packets as they expand in a plane. We achieve this by controllably projecting the expanding wavefunction onto the sites of a deep optical lattice and subsequently performing single-atom imaging.
  arXiv  Detail & Related papers  (2024-04-08T17:32:07Z)
• Controlling Markovianity with Chiral Giant Atoms [0.0]
  A hallmark of giant-atom physics is their non-Markovian character in the form of self-coherent feedback. We show that by adjusting the couplings' phases, a giant atom can, counterintuitively, enter an exact Markovian regime.
  arXiv  Detail & Related papers  (2024-02-23T19:00:01Z)
• Formation of robust bound states of interacting microwave photons [148.37607455646454]
  One of the hallmarks of interacting systems is the formation of multi-particle bound states. We develop a high fidelity parameterizable fSim gate that implements the periodic quantum circuit of the spin-1/2 XXZ model. By placing microwave photons in adjacent qubit sites, we study the propagation of these excitations and observe their bound nature for up to 5 photons.
  arXiv  Detail & Related papers  (2022-06-10T17:52:29Z)
• 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)
• Time-of-Flight Quantum Tomography of Single Atom Motion [0.0]
  We show time-of-flight imaging can realize tomography of a quantum state of motion of a single trapped atom. Tomography of motion requires studying the phase space spanned by both position and momentum.
  arXiv  Detail & Related papers  (2022-03-06T21:04:19Z)
• Visualizing spinon Fermi surfaces with time-dependent spectroscopy [62.997667081978825]
  We propose applying time-dependent photo-emission spectroscopy, an established tool in solid state systems, in cold atom quantum simulators. We show in exact diagonalization simulations of the one-dimensional $t-J$ model that the spinons start to populate previously unoccupied states in an effective band structure. The dependence of the spectral function on the time after the pump pulse reveals collective interactions among spinons.
  arXiv  Detail & Related papers  (2021-05-27T18:00:02Z)
• Tomographic imaging of complete quantum state of matter by ultrafast diffraction [5.0532715523073355]
  Quantum tomography has had a significant impact on quantum optics, quantum computing and quantum information. Here we present a theoretical advance to overcome the notorious dimension problem. The new theory has solved this problem, which makes quantum tomography a truly useful methodology in ultrafast physics.
  arXiv  Detail & Related papers  (2020-12-22T09:52:48Z)
• Spin Entanglement and Magnetic Competition via Long-range Interactions in Spinor Quantum Optical Lattices [62.997667081978825]
  We study the effects of cavity mediated long range magnetic interactions and optical lattices in ultracold matter. We find that global interactions modify the underlying magnetic character of the system while introducing competition scenarios. These allow new alternatives toward the design of robust mechanisms for quantum information purposes.
  arXiv  Detail & Related papers  (2020-11-16T08:03:44Z)
• Quantum metamaterial for nondestructive microwave photon counting [52.77024349608834]
  We introduce a single-photon detector design operating in the microwave domain based on a weakly nonlinear metamaterial. We show that the single-photon detection fidelity increases with the length of the metamaterial to approach one at experimentally realistic lengths. In stark contrast to conventional photon detectors operating in the optical domain, the photon is not destroyed by the detection and the photon wavepacket is minimally disturbed.
  arXiv  Detail & Related papers  (2020-05-13T18:00:03Z)
• Quantum Hall phase emerging in an array of atoms interacting with photons [101.18253437732933]
  Topological quantum phases underpin many concepts of modern physics. Here, we reveal that the quantum Hall phase with topological edge states, spectral Landau levels and Hofstadter butterfly can emerge in a simple quantum system. Such systems, arrays of two-level atoms (qubits) coupled to light being described by the classical Dicke model, have recently been realized in experiments with cold atoms and superconducting qubits.
  arXiv  Detail & Related papers  (2020-03-18T14:56:39Z)

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.