Entanglement between living bacteria and quantized light witnessed by Rabi splitting

  title={Entanglement between living bacteria and quantized light witnessed by Rabi splitting},
  author={Chiara Marletto and David M. Coles and Tristan Farrow and V. Vedral},
  journal={Journal of Physics Communications},
We model recent experiments on living sulphur bacteria interacting with quantised light, using the Dicke model. Our analysis shows that the strong coupling between the bacteria and the light, when both are treated quantum-mechanically, indicates that in those experiments there is entanglement between the bacteria (modelled as dipoles) and the quantised light (modelled as a single quantum harmonic oscillator). The existence of lower polariton branch due to the vacuum Rabi splitting, measured in… 

Probing quantum features of photosynthetic organisms

Recent experiments have demonstrated strong coupling between living bacteria and light. Here we propose a scheme capable of revealing non-classical features of the bacteria (quantum discord of

Spatial and temporal bounds on quantum effects for micro-organisms

Progress in the experimental nano-sciences and laser cooling has led to the manipulation of material objects with sizes and temperatures such that quantum effects start to appear. This range of sizes

Entanglement in a qubit-qubit-tardigrade system

Quantum and biological systems are seldom discussed together as they seemingly demand opposing conditions. Life is complex, ‘hot and wet’ whereas quantum objects are small, cold and well controlled.

Open quantum entanglement: a study of two atomic system in static patch of de Sitter space

In this work, our prime objective is to study non-locality and long range effect of two body correlation using quantum entanglement from various information theoretic measure in the static patch of

Distribution of quantum entanglement : principles and applications

The main focus of this thesis is to study the distribution of quantum entanglement via continuous interactions with ancillary particles, which I will call mediators, which includes, among others, indirect probing of the quantum nature of optomechanical mirrors, photosynthetic organisms, and gravitational interactions.

Quantum SMEFT tomography: Top quark pair production at the LHC

Quantum information observables, such as entanglement measures, provide a powerful way to characterize the properties of quantum states. We propose to use them to probe the structure of fundamental

Quantum coherence in the photosynthesis apparatus of living cyanobacteria

Life as we know it cannot exist without photosynthesis, and even though the main photosynthetic mechanisms have been well investigated, some aspects are still unresolved. One example is the energy

The QBIT Theory: Consciousness from Entangled Qubits.

  • Majid Beshkar
  • Biology, Psychology
    Integrative psychological & behavioral science
  • 2022
The QBIT theory argues that the brain has a prior belief about the stimulus that has caused a sensory representation to be created in the brain, and the brain becomes more than certain about (i.e. becomes conscious of) the stimulus.

Explaining Homeopathy with Quantum Electrodynamics.

A model of multi-level coherence for living organisms in which fractal phase oscillations of water are able to link and regulate a biochemical reaction, thus providing the homeopath with a firm grounding in the practice of rational medicine.

Witnessing the quantumness of a system by observing only its classical features

A central problem in fundamental physics is to witness the non-classicality of systems whose dynamics is not completely specified. For example, this arises in testing predictions that a macroscopic



Entanglement in many-body systems

Recent interest in aspects common to quantum information and condensed matter has prompted a flurry of activity at the border of these disciplines that were far distant until a few years ago.

Leggett–Garg inequalities

In contrast to the spatial Bell's inequalities which probe entanglement between spatially separated systems, the Leggett–Garg inequalities test the correlations of a single system measured at

Coherence in Spontaneous Radiation Processes

By considering a radiating gas as a single quantum-mechanical system, energy levels corresponding to certain correlations between individual molecules are described. Spontaneous emission of radiation

Single-molecule strong coupling at room temperature in plasmonic nanocavities

Statistical analysis of vibrational spectroscopy time series and dark-field scattering spectra provides evidence of single-molecule strong coupling, opening up the exploration of complex natural processes such as photosynthesis and the possibility of manipulating chemical bonds.

Vacuum Rabi splitting as a feature of linear-dispersion theory: Analysis and experimental observations.

The spectral and temporal response of an optical cavity resonantly coupled to an ensemble of barium atoms has been investigated experimentally. The empty-cavity transmission resonances are found to

Entanglement and the phase transition in single-mode superradiance.

This work considers the entanglement properties of the quantum phase transition in the single-mode superradiance model, involving the interaction of a boson mode and an ensemble of atoms, and derives an exact expression for the scaled concurrence and the cusplike nonanalyticity of the momentum squeezing.

Speakable and Unspeakable in Quantum Mechanics: Collected Papers on Quantum Philosophy

List of papers on quantum philosophy by J. S. Bell Preface Acknowledgements Introduction by Alain Aspect 1. On the problem of hidden variables in quantum mechanics 2. On the Einstein-Rosen-Podolsky

Suppressing photochemical reactions with quantized light fields

It is shown that strong coupling of organic molecules to a confined light mode can be used to strongly suppress photoisomerization, as well as other photochemical reactions, and thus convert molecules that normally show fast photodegradation into photostable forms.

Light and Life

AS a physicist whose studies are limited to the properties of inanimate bodies, it is not without hesitation that I have accepted the kind invitation to address this assembly of scientific men met

Strong coupling between surface plasmons and excitons in an organic semiconductor.

The emission of the low energy plasmon-exciton mixed state has been observed and is largely shifted from the uncoupled emission.