Gravitational lensing for interstellar power transmission

Turyshev, Slava G.

doi:10.1103/physrevd.109.064029

Phys. Rev. D

2024

DOI: 10.1103/physrevd.109.064029

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Gravitational lensing for interstellar power transmission

Slava G. Turyshev

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Cited by 5 publications

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Non-coplanar gravitational lenses and the “communication bridge”

Toth

2024

Astrophys Space Sci

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Non-coplanar gravitational lenses and the “communication bridge”

Toth

2024

Astrophys Space Sci

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Dynamically stable radiation pressure propulsion of flexible lightsails for interstellar exploration

Gao,

Kelzenberg,

Atwater

2024

Nat Commun

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Meter-scale, submicron-thick lightsail spacecraft, propelled to relativistic velocities via photon pressure using high-power density laser radiation, offer a potentially new route to space exploration within and beyond the solar system, posing substantial challenges for materials science and engineering. We analyze the structural and photonic design of flexible lightsails by developing a mesh-based multiphysics simulator based on linear elastic theory. We observe spin-stabilized flexible lightsail shapes and designs that are immune to shape collapse during acceleration and exhibit beam-riding stability despite deformations caused by photon pressure and thermal expansion. Excitingly, nanophotonic lightsails based on planar silicon nitride membranes patterned with suitable optical metagratings exhibit both mechanically and dynamically stable propulsion along the pump laser axis. These advances suggest that laser-driven acceleration of membrane-like lightsails to the relativistic speeds needed to access interstellar distances is conceptually feasible, and that their fabrication could be achieved by scaling up modern microfabrication technology.

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The effects of conical singularity and the Wu–Yang magnetic monopole on the thermodynamic properties of a harmonic oscillator interacting with a potential

Ahmed,

Bouzenada

2024

Commun. Theor. Phys.

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This paper investigates the thermodynamic properties of the harmonic oscillator system in a conical singularities background. Moreover, we incorporate a Wu-Yang magnetic monopole (WYMM) and inverse square potential into the quantum system and analyze the resulting effects. Using analytical methods, we derive the energy eigenvalues and study the thermodynamic properties, such as the partition function, Helmholtz free energy, Gibbs's free energy and specific heat capacity at finite temperature $T \neq 0$. Our findings demonstrate that these physical parameters are influenced by the topological parameter, strength of WYMM and potential parameters. These results provide valuable insights into the interplay between thermodynamic properties of a quantum mechanical problem and the gravitational effects.

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Gravitational lensing for interstellar power transmission

Cited by 5 publications

References 35 publications

Non-coplanar gravitational lenses and the “communication bridge”

Non-coplanar gravitational lenses and the “communication bridge”

Dynamically stable radiation pressure propulsion of flexible lightsails for interstellar exploration

The effects of conical singularity and the Wu–Yang magnetic monopole on the thermodynamic properties of a harmonic oscillator interacting with a potential

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