Protocols for a many-body phase microscope: From coherences and d-wave superconductivity to Green's functions

• URL: http://arxiv.org/abs/2602.12142v1
• Date: Thu, 12 Feb 2026 16:29:22 GMT
• Title: Protocols for a many-body phase microscope: From coherences and d-wave superconductivity to Green's functions
• Authors: Christof Weitenberg, Luca Asteria, Ola Carlsson, Annabelle Bohrdt, Fabian Grusdt,
• Abstract summary: We propose how Fourier-space manipulation in a matter-wave microscope allows access to various long-range off-diagonal correlators in experimentally realistic settings.<n>Our results show the great potential of matter-wave microscopy for accessing exotic correlations including phases and coherences and characterizing intriguing quantum many-body states.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Quantum gas microscopes probe quantum many-body lattice states via projective measurements in the occupation basis, enabling access to various density and spin correlations. Phase information, however, cannot be directly obtained in these setups. Recent experiments went beyond this by measuring local current operators and local phase fluctuations. Here we propose how Fourier-space manipulation in a matter-wave microscope allows access to various long-range off-diagonal correlators in experimentally realistic settings, realizing a many-body phase microscope. We demonstrate in particular how the fermionic d-wave superconducting order parameter in arbitrary Hubbard-type models, the non-equal time Green's function yielding the spectral function, or the hidden order of composite bosons in a fractional Chern insulator can be directly measured. Our results show the great potential of matter-wave microscopy for accessing exotic correlators including phases and coherences and characterizing intriguing quantum many-body states.

Related papers

• Experimental Verification of Electron-Photon Entanglement [39.58317527488534]
  Entanglement, a key resource of emerging quantum technologies, describes correlations between particles that defy classical physics.<n>We demonstrate entanglement in electron-photon pairs generated via cathodoluminescence in a transmission electron microscope.<n>Our work paves the way for exploring quantum correlations in free-electron systems and their application to quantum-enhanced imaging techniques on the nanoscale.
  arXiv  Detail & Related papers  (2025-04-17T17:58:50Z)
• Efficiently measuring $d$-wave pairing and beyond in quantum gas microscopes [0.0]
  We introduce a protocol for measuring a broad class of observables in fermionic quantum gas microscopes.<n>The protocol only requires global controls followed by site-resolved particle number measurements.<n>We further optimize our pulses for robustness to experimental imperfections such as lattice inhomogeneity.
  arXiv  Detail & Related papers  (2024-12-17T18:58:32Z)
• Realization of strongly-interacting Meissner phases in large bosonic flux ladders [36.136619420474766]
  We experimentally realize the strongly-interacting Mott-Meissner phase in large-scale bosonic flux ladders with 48 sites at half filling.<n>Our results demonstrate the feasibility of scaling periodically driven quantum systems to large, strongly correlated phases.
  arXiv  Detail & Related papers  (2024-12-12T17:27:49Z)
• Quantum State Transfer in a Magnetic Atoms Chain Using a Scanning Tunneling Microscope [44.99833362998488]
  The electric control of quantum spin chains has been an outstanding goal for the few last years due to its potential use in technologies related to quantum information processing. We show the feasibility of the different steps necessary to perform controlled quantum state transfer in a $S=1/2$ titanium atoms chain employing the electric field produced by a Scanning Tunneling Microscope (STM)
  arXiv  Detail & Related papers  (2024-08-13T14:45:46Z)
• 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)
• Cavity-induced switching between Bell-state textures in a quantum dot [0.0]
  We show how a simple theoretical model of this interplay at resonance predicts complex but measurable effects. New polariton states emerge that combine spin, relative modes, and radiation. We uncover novel topological effects involving highly correlated spin and charge density.
  arXiv  Detail & Related papers  (2023-08-17T01:31:36Z)
• Dipolar quantum solids emerging in a Hubbard quantum simulator [45.82143101967126]
  Long-range and anisotropic interactions promote rich spatial structure in quantum mechanical many-body systems. We show that novel strongly correlated quantum phases can be realized using long-range dipolar interaction in optical lattices. This work opens the door to quantum simulations of a wide range of lattice models with long-range and anisotropic interactions.
  arXiv  Detail & Related papers  (2023-06-01T16:49:20Z)
• Tuning long-range fermion-mediated interactions in cold-atom quantum simulators [68.8204255655161]
  Engineering long-range interactions in cold-atom quantum simulators can lead to exotic quantum many-body behavior. Here, we propose several tuning knobs, accessible in current experimental platforms, that allow to further control the range and shape of the mediated interactions.
  arXiv  Detail & Related papers  (2022-03-31T13:32:12Z)
• Accessing the topological Mott insulator in cold atom quantum simulators with realistic Rydberg dressing [58.720142291102135]
  We investigate a realistic scenario for the quantum simulation of such systems using cold Rydberg-dressed atoms in optical lattices. We perform a detailed analysis of the phase diagram at half- and incommensurate fillings, in the mean-field approximation. We furthermore study the stability of the phases with respect to temperature within the mean-field approximation.
  arXiv  Detail & Related papers  (2022-03-28T14:55:28Z)
• Spin many-body phases in standard and topological waveguide QED simulators [68.8204255655161]
  We study the many-body behaviour of quantum spin models using waveguide QED setups. We find novel many-body phases different from the ones obtained in other platforms.
  arXiv  Detail & Related papers  (2021-06-22T09:44:20Z)
• 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)

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.