Direct measurement of particle statistical phase

• URL: http://arxiv.org/abs/2202.00575v3
• Date: Mon, 7 Feb 2022 12:00:43 GMT
• Title: Direct measurement of particle statistical phase
• Abstract summary: We propose a scheme capable to directly measure the exchange phase of any type of particles. We supply a direct measurement of the real bosonic exchange phase of photons. Our results confirm the symmetrization tenet and provide a tool to explore it in various scenarios.
• Score: 10.068386476033142
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: The symmetrization postulate in quantum mechanics is formally reflected in the appearance of an exchange phase ruling the symmetry of identical particle global states under particle swapping. Many indirect measurements of this fundamental phase have been reported so far, while a direct observation has been only recently achieved for photons. Here we propose a general scheme capable to directly measure the exchange phase of any type of particles (bosons, fermions, anyons), exploiting the operational framework of spatially localized operations and classical communication. We experimentally implement it in an all-optical platform providing proof-of-principle for different simulated exchange phases. As a byproduct, we supply a direct measurement of the real bosonic exchange phase of photons. Also, we analyze the performance of the proposed scheme when mixtures of particles of different nature are injected. Our results confirm the symmetrization tenet and provide a tool to explore it in various scenarios.

Related papers

• Measurement-Induced Dynamics of Particles and Quasiparticles in a Bose-Einstein-condensate array [13.35285005895192]
  Measurement plays a crucial role in a quantum system beyond just learning about the system state.<n>We focus on the case of a Bose-Einstein-condensate array, in the low-temperature and low-momentum limit.<n>We find a path to selectively measuring quasiparticle modes directly, as well as controlling over the measurement-induced creation and diffusion of quasiparticles into different momentum states.
  arXiv  Detail & Related papers  (2026-02-05T17:35:05Z)
• Generation and certification of pure phase entangled light [0.0]
  Biphoton systems exhibiting entanglement in position-momentum variables, known as spatial entanglement, are among the most intriguing and well-studied phenomena in quantum optics.<n>A notable subset of these are phase entangled states, where entanglement manifests purely through correlations in the spatial phase of the wavefunction.<n>We theoretically and experimentally examine a unique form of phase entanglement known as pure' phase entanglement.
  arXiv  Detail & Related papers  (2025-08-15T11:42:38Z)
• Quantum tomography of the superfluid-insulator transition for a mesoscopic atomtronic ring [3.818125813905444]
  We provide a phase-space perspective for the analysis of the superfluid-insulator transition for finite-size Bose-Hubbard circuits.<n>We explore how the eigenstates parametrically evolve as the inter-particle interaction is varied.<n>Finally we focus on the formation of the lowest Goldstone and Higgs bands.
  arXiv  Detail & Related papers  (2025-04-20T06:17:10Z)
• Quantum walk on a square lattice with identical particles [0.0]
  We investigate quantum superposition effects in two-dimensional quantum walks of identical particles with different statistics under particle exchange. We focus on joint properties such as two-particle coincidence probabilities and the spread velocity of the inter-particle distance. We discuss the potential for implementing this model using integrated photonic circuits by exploiting $N$-partite entanglement between individual photons.
  arXiv  Detail & Related papers  (2025-04-15T11:33:08Z)
• Bosonic Peierls state emerging from the one-dimensional Ising-Kondo interaction [0.6086160084025234]
  Peierls transition, a hot topic in condensed matter physics, is usually believed to occur in the one-dimensional fermionic systems. We show that, by means of perturbation analysis and numerical density-matrix renormalization group method, a bosonic analog of the Peierls state can occur in proper parameters regimes.
  arXiv  Detail & Related papers  (2024-11-25T13:10:53Z)
• Experimental observation of spontaneous symmetry breaking in a quantum phase transition [2.2706551270477613]
  Spontaneous symmetry breaking plays a central role in understanding a large variety of phenomena associated with phase transitions. We report an experimental demonstration of such a process with a quantum Rabi model engineered with a superconducting circuit. Results demonstrate that the environment-induced decoherence plays a critical role in the SSB.
  arXiv  Detail & Related papers  (2024-06-28T03:14:27Z)
• Action formalism for geometric phases from self-closing quantum trajectories [55.2480439325792]
  We study the geometric phase of a subset of self-closing trajectories induced by a continuous Gaussian measurement of a single qubit system. We show that the geometric phase of the most likely trajectories undergoes a topological transition for self-closing trajectories as a function of the measurement strength parameter.
  arXiv  Detail & Related papers  (2023-12-22T15:20:02Z)
• Measurement-based Lorentz-covariant Bohmian trajectories of interacting photons [0.0]
  We describe the relativistic Bohmian trajectories of two interacting photons exhibiting nonclassical interference due to their indistiguishability. We propose a spacetime metric that depends nonlocally on the positions of both particles as a curvature based interpretation of the resulting trajectories.
  arXiv  Detail & Related papers  (2023-09-27T20:40:07Z)
• Evolution of many-body systems under ancilla quantum measurements [58.720142291102135]
  We study the concept of implementing quantum measurements by coupling a many-body lattice system to an ancillary degree of freedom. We find evidence of a disentangling-entangling measurement-induced transition as was previously observed in more abstract models.
  arXiv  Detail & Related papers  (2023-03-13T13:06:40Z)
• Phase transitions induced by standard and predetermined measurements in transmon arrays [0.0]
  Measurement-induced phase transitions have been observed in quantum systems composed of trapped ions and superconducting quantum devices. We show numerically that a transmon array, modeled by an attractive Bose-Hubbard model, exhibits a phase transition in the entanglement entropy properties of the ensemble of trajectories in the steady state.
  arXiv  Detail & Related papers  (2023-02-06T17:09:42Z)
• Geometric phases along quantum trajectories [58.720142291102135]
  We study the distribution function of geometric phases in monitored quantum systems. For the single trajectory exhibiting no quantum jumps, a topological transition in the phase acquired after a cycle. For the same parameters, the density matrix does not show any interference.
  arXiv  Detail & Related papers  (2023-01-10T22:05:18Z)
• 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)
• 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)
• 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)
• Direct observation of the particle exchange phase of photons [0.0]
  The symmetry of the states can be inferred indirectly from the fact that neglecting the correct exchange symmetry in the theoretical analysis leads to dramatic discrepancies with the observations. We have measured the exchange phase of indistinguishable photons, providing direct evidence of the bosonic character of photons.
  arXiv  Detail & Related papers  (2020-11-17T17:04:29Z)

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.