Bioinspired molecular qubits and nanoparticle ensembles that could be initialized, manipulated and readout under mild conditions

• URL: http://arxiv.org/abs/2107.06682v1
• Date: Wed, 14 Jul 2021 13:18:01 GMT
• Title: Bioinspired molecular qubits and nanoparticle ensembles that could be initialized, manipulated and readout under mild conditions
• Authors: Mingfeng Wang, Yipeng Zhang, Wei Zhang
• Abstract summary: We report a new type of molecular qubits and nanoparticles based on thermally controllable transformation between J-aggregation and monomeric states of molecular chromophores. Such supramolecular quantum systems, resembling some feature of light harvesting complexes in photosynthesis, provide new opportunities for manipulating quantum in-formation under mild conditions.
• Score: 17.257388144832426
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Quantum computation and quantum information processing are emerging technologies that have potential to overcome the physical limitation of traditional computation systems. Present quantum systems based on photons, atoms and molecules, however, all face challenges such as short coherence time, requirement of ultralow temperature and/or high vacuum, and lack of scalability. We report a new type of molecular qubits and nanoparticle ensembles based on thermally controllable transformation between J-aggregation and monomeric states of molecular chromophores, using pyrrolopyrrole cyanine tethered with polymeric chains such as polycaprolactones as an example. Such supramolecular quantum systems, resembling some feature of light harvesting complexes in photosynthesis, provide new opportunities for manipulating quantum in-formation under mild conditions, which do not require complicated ultra-cooling and/or high vacuum often involved in present superconducting qubits or Rydberg atoms for quantum computation and information processing.

Related papers

• Quantized Embedding Approaches for Collective Strong Coupling -- Connecting ab initio and macroscopic QED to Simple Models in Polaritonics [0.0]
  We introduce an accessible ab initio quantum embedding concept for many-body quantum optical systems. Our approach fully includes the quantum fluctuations of the polaritonic field.
  arXiv  Detail & Related papers  (2024-08-24T12:50:10Z)
• Limits for coherent optical control of quantum emitters in layered materials [49.596352607801784]
  coherent control of a two-level system is among the most essential challenges in modern quantum optics. We use a mechanically isolated quantum emitter in hexagonal boron nitride to explore the individual mechanisms which affect the coherence of an optical transition under resonant drive. New insights on the underlying physical decoherence mechanisms reveals a limit in temperature until which coherent driving of the system is possible.
  arXiv  Detail & Related papers  (2023-12-18T10:37:06Z)
• 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)
• Tailoring the degree of entanglement of two coherently coupled quantum emitters [0.0]
  Controlled molecular entanglement can serve as a test-bench to decipher more complex physical or biological mechanisms governed by the coherent coupling. We implement hyperspectral imaging to identify pairs of coupled organic molecules trapped in a low temperature matrix. We also demonstrate far-field selective excitation of the long-lived subradiant delocalized states with a laser field tailored in amplitude and phase.
  arXiv  Detail & Related papers  (2021-09-22T08:30:59Z)
• Molecular spin qudits for quantum simulation of light-matter interactions [62.223544431366896]
  We show that molecular spin qudits provide an ideal platform to simulate the quantum dynamics of photon fields strongly interacting with matter. The basic unit of the proposed molecular quantum simulator can be realized by a simple dimer of a spin 1/2 and a spin $S$ transition metal ion, solely controlled by microwave pulses.
  arXiv  Detail & Related papers  (2021-03-17T15:03:12Z)
• Counteracting dephasing in Molecular Nanomagnets by optimized qudit encodings [60.1389381016626]
  Molecular Nanomagnets may enable the implementation of qudit-based quantum error-correction codes. A microscopic understanding of the errors corrupting the quantum information encoded in a molecular qudit is essential.
  arXiv  Detail & Related papers  (2021-03-16T19:21:42Z)
• Simulation of Collective Neutrino Oscillations on a Quantum Computer [117.44028458220427]
  We present the first simulation of a small system of interacting neutrinos using current generation quantum devices. We introduce a strategy to overcome limitations in the natural connectivity of the qubits and use it to track the evolution of entanglement in real-time.
  arXiv  Detail & Related papers  (2021-02-24T20:51:25Z)
• Single organic molecules for photonic quantum technologies [0.0]
  Isolating single molecules in the solid state has allowed fundamental experiments in basic and applied sciences. We show that quantum emitters based on single molecules hold promise to play a key role in the development of quantum science and technologies.
  arXiv  Detail & Related papers  (2020-11-10T11:53:52Z)
• Quantum electromechanics with levitated nanoparticles [0.0]
  In contrast to atomic systems with discrete transitions, nanoparticles exhibit a practically continuous absorption spectrum. We propose a pulsed scheme for the generation and read-out of motional quantum superpositions and entanglement between several levitated nanoparticles.
  arXiv  Detail & Related papers  (2020-05-28T13:52:42Z)
• Continuously parametrized quantum simulation of molecular electron transfer reactions [0.0]
  We show that trapped-ion experiments allow to reproduce and connect vastly different regimes of molecular charge transfer. Such a setting allows not only to reproduce widely-used transport models, such as Marcus theory, but also to control and measure the relevant observables. Our numerical simulations predict an unconventional quantum transfer regime, featuring a transition from quantum adiabatic- to resonance-assisted transfer.
  arXiv  Detail & Related papers  (2020-04-06T18:25:33Z)
• 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.