Probing multi-mobility edges in quasiperiodic mosaic lattices
- URL: http://arxiv.org/abs/2306.10829v2
- Date: Mon, 23 Sep 2024 07:44:26 GMT
- Title: Probing multi-mobility edges in quasiperiodic mosaic lattices
- Authors: Jun Gao, Ivan M. Khaymovich, Xiao-Wei Wang, Ze-Sheng Xu, Adrian Iovan, Govind Krishna, Jiayidaer Jieensi, Andrea Cataldo, Alexander V. Balatsky, Val Zwiller, Ali W. Elshaari,
- Abstract summary: The mobility edge (ME) is a crucial concept in understanding localization physics.
Here, we provide experimental evidence to address the possibility of a single system exhibiting multiple MEs.
By single site injection and scanning the disorder level, we could approximately probe the ME of the modulated lattice.
- Score: 36.63101591801625
- License: http://creativecommons.org/licenses/by/4.0/
- Abstract: The mobility edge (ME) is a crucial concept in understanding localization physics, marking the critical transition between extended and localized states in the energy spectrum. Anderson localization scaling theory predicts the absence of ME in lower dimensional systems. Hence, the search for exact MEs, particularly for single particles in lower dimensions, has recently garnered significant interest in both theoretical and experimental studies, resulting in notable progress. However, several open questions remain, including the possibility of a single system exhibiting multiple MEs and the continual existence of extended states, even within the strong disorder domain. Here, we provide experimental evidence to address these questions by utilizing a quasiperiodic mosaic lattice with meticulously designed nanophotonic circuits. Our observations demonstrate the coexistence of both extended and localized states in lattices with broken duality symmetry and varying modulation periods. By single site injection and scanning the disorder level, we could approximately probe the ME of the modulated lattice. These results corroborate recent theoretical predictions, introduce a new avenue for investigating ME physics, and offer inspiration for further exploration of ME physics in the quantum regime using hybrid integrated photonic devices.
Related papers
- Cahier de l'Institut Pascal: Noisy Quantum Dynamics and Measurement-Induced Phase Transitions [44.99833362998488]
We provide an analysis of recent results in the context of measurement-induced phase transitions in quantum systems.
Recent results show how varying the rate of projective measurements can induce phase transitions.
We present results on the non-local effects of local measurements by examining the field theory of critical ground states in Tomonaga-Luttinger liquids.
arXiv Detail & Related papers (2024-09-10T08:10:25Z) - Long-range multipartite entanglement near measurement-induced transitions [0.0]
We investigate the multipartite entanglement structure that emerges in quantum circuits involving unitaries and measurements.
We show how a balance between measurements and unitary evolution can lead to multipartite entanglement spreading to distances far greater than what is found in non-monitored systems.
arXiv Detail & Related papers (2024-04-24T18:00:01Z) - Manybody Interferometry of Quantum Fluids [0.19528996680336308]
'Manybody Ramsey interferometry' combines adiabatic state preparation and Ramsey spectroscopy.
This work opens new avenues for characterizing manybody states, paving the way for quantum computers to efficiently probe quantum matter.
arXiv Detail & Related papers (2023-09-11T18:01:17Z) - 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) - Exact new mobility edges between critical and localized states [5.740412422102932]
disorder systems host three types of fundamental quantum states, known as the extended, localized, and critical states.
We propose a class of exactly solvable models which host a novel type of exact mobility edges (MEs) separating localized states from robust critical states.
This work may pave a way to precisely explore the critical states and new ME physics with experimental feasibility.
arXiv Detail & Related papers (2022-12-29T12:31:19Z) - Response of open two-band systems to a momentum-carrying single-mode
quantized field [3.713896286578935]
We study the response of topological insulator driven by momentum-carrying single-mode field.
We show that from the analytical solution of hall conductance compared with the closed system, there is an extra correction term.
The phase transition point of topological phase is robust to the environment.
arXiv Detail & Related papers (2022-10-18T16:24:49Z) - Sensing of magnetic field effects in radical-pair reactions using a
quantum sensor [50.591267188664666]
Magnetic field effects (MFE) in certain chemical reactions have been well established in the last five decades.
We employ elaborate and realistic models of radical-pairs, considering its coupling to the local spin environment and the sensor.
For two model systems, we derive signals of MFE detectable even in the weak coupling regime between radical-pair and NV quantum sensor.
arXiv Detail & Related papers (2022-09-28T12:56:15Z) - 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) - Bose-Einstein condensate soliton qubit states for metrological
applications [58.720142291102135]
We propose novel quantum metrology applications with two soliton qubit states.
Phase space analysis, in terms of population imbalance - phase difference variables, is also performed to demonstrate macroscopic quantum self-trapping regimes.
arXiv Detail & Related papers (2020-11-26T09:05:06Z) - Probing eigenstate thermalization in quantum simulators via
fluctuation-dissipation relations [77.34726150561087]
The eigenstate thermalization hypothesis (ETH) offers a universal mechanism for the approach to equilibrium of closed quantum many-body systems.
Here, we propose a theory-independent route to probe the full ETH in quantum simulators by observing the emergence of fluctuation-dissipation relations.
Our work presents a theory-independent way to characterize thermalization in quantum simulators and paves the way to quantum simulate condensed matter pump-probe experiments.
arXiv Detail & Related papers (2020-07-20T18:00:02Z)
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.