77 citations · 421 across the 35 of their papers we have counts for
35 papers
Extending unified gravity to account for graviton-graviton interaction
Mikko Partanen, Jukka Tulkki
Recently, a gauge theory of unified gravity [Rep. Prog. Phys. 88, 057802 (2025)] has been developed to extend the Standard Model to include gravity. Here we present unified gravity…
Atomic Dirac energy-level dynamics and redshift in the 4xU(1) gravity gauge field
Mikko Partanen, Jukka Tulkki
Gravitational interaction unavoidably influences atoms and their electromagnetic radiation field in strong gravitational fields. Theoretical description of such effects using the c…
Perihelion precession of planetary orbits solved from quantum field theory
Mikko Partanen, Jukka Tulkki
We derive the perihelion precession of planetary orbits using quantum field theory extending the Standard Model to include gravity. Modeling the gravitational bound state of an ele…
Light deflection in unified gravity and measurable deviation from general relativity in the second post-Newtonian order
Mikko Partanen, Jukka Tulkki
Light does not travel in a perfectly straight line when it passes near massive objects. In this work, we calculate the gravitational deflection of light using the gauge theory of u…
Chiral-stress-energy-momentum tensor for covariant description of spin and torque densities of light
Mikko Partanen, Jukka Tulkki
The measurement of the spin angular momentum of circularly polarized light by Beth [Phys. Rev. 50, 115 (1936)] can be explained by using a microscopic torque density. However, the…
A local model for the optical energy and momentum transfer in dielectric media and the microscopic origin of Abraham's force density
B. Anghinoni, M. Partanen, N. G. C. Astrath
We report on the continuity equations for linear momentum and energy associated to a recently introduced electromagnetic formulation based on classical dipolar sources [Eur. Phys.…
Effects of resonances and surface texturing on light emission in emerging thin-film devices
Pyry Kivisaari, Mikko Partanen, Jani Oksanen
Recent developments in thin-film fabrication and processing open up interesting possibilities for both established and emerging optics technologies. There, one of the key questions…
QED based on eight-dimensional spinorial wave equation of the electromagnetic field and the emergence of quantum gravity
Mikko Partanen, Jukka Tulkki
Quantum electrodynamics (QED) is the most accurate of all experimentally verified physical theories. How QED and other theories of fundamental interactions couple to gravity throug…
Gravity generated by four one-dimensional unitary gauge symmetries and the Standard Model
Mikko Partanen, Jukka Tulkki
The Standard Model of particle physics describes electromagnetic, weak, and strong interactions, which are three of the four known fundamental forces of nature. The unification of…
The Microscopic Ampère formulation for the electromagnetic force density in linear dielectrics
Bruno Anghinoni, Mikko Partanen, Nelson G. C. Astrath
We present a detailed derivation of the electromagnetic force density and pressure in linear dielectric media according to the so-called Microscopic Ampère formulation, which consi…
Time-dependent theory of optical electro- and magnetostriction
Mikko Partanen, Bruno Anghinoni, Nelson G. C. Astrath +1
Electrostriction, the deformation of dielectric materials under the influence of an electric field, is of continuous interest in optics. The classic experiment by Hakim and Higham…
Time-dependent optical force theory for optomechanics of dispersive 3D photonic materials and devices
Mikko Partanen, Jukka Tulkki
We present a position- and time-dependent optical force theory for optomechanics of dispersive 3D photonic materials and devices. The theory applies to media including material int…
Negative radiation pressure in metamaterials explained by light-driven atomic mass density rarefication waves
Mikko Partanen, Jukka Tulkki
The momentum and radiation pressure of light in negative-index metamaterials (NIMs) are commonly expected to reverse their direction from what is observed for normal materials. The…
Covariant theory of light in a dispersive medium
Mikko Partanen, Jukka Tulkki
The relativistic theory of the time- and position-dependent energy and momentum densities of light in glasses and other low-loss dispersive media, where different wavelengths of li…
Interplay of photons and charge carriers in thin-film devices
Pyry Kivisaari, Mikko Partanen, Toufik Sadi +1
Thin films are gaining ground in photonics and optoelectronics, promising improvements in their efficiency and functionality as well as decreased material usage as compared to bulk…
Quantitative in situ measurement of optical force along a strand of cleaved silica optical fiber induced by the light guided therewithin
Mikko Partanen, Hyeonwoo Lee, Kyunghwan Oh
We proposed an optomechanical system to quantify the net force on a strand of cleaved silica optical fiber in situ as the laser light was being guided through it. Four strands of t…
Radiation pressure measurement using a macroscopic oscillator in an ambient environment
Mikko Partanen, Hyeonwoo Lee, Kyunghwan Oh
In contrast to current efforts to quantify the radiation pressure of light using nano-micromechanical resonators in cryogenic conditions, we proposed and experimentally demonstrate…
Comment on "Analysis of recent interpretations of the Abraham-Minkowski problem"
Mikko Partanen, Jukka Tulkki
In a recent paper [I. Brevik, Phys. Rev. A 98, 043847 (2018)], Brevik analyzed the experiment by Kundu et al. [A. Kundu et al., Sci. Rep. 7, 42538 (2017)] reporting deformation of…
Lagrangian dynamics of the coupled field-medium state of light
Mikko Partanen, Jukka Tulkki
In the recently introduced mass-polariton (MP) theory of light [Phys. Rev. A 95, 063850 (2017)], the optical force of light drives in a medium forward an atomic mass density wave.…
Lorentz covariance of the mass-polariton theory of light
Mikko Partanen, Jukka Tulkki
In the mass-polariton (MP) theory of light formulated by us recently [Phys. Rev. A 95, 063850 (2017)], light in a medium is described as a coupled state of the field and matter. Th…
Light-driven mass density wave dynamics in optical fibers
Mikko Partanen, Jukka Tulkki
We have recently developed the mass-polariton (MP) theory of light to describe the light propagation in transparent bulk materials [Phys. Rev. A 95, 063850 (2017)]. The MP theory i…
Mass-polariton theory of sharing the total angular momentum of light between the field and matter
Mikko Partanen, Jukka Tulkki
Light propagating in a nondispersive medium is accompanied by a mass density wave (MDW) of atoms set in motion by the optical force of the field itself [Phys. Rev. A 95, 063850 (20…
Measuring and engineering the atomic mass density wave of a Gaussian mass-polariton pulse in optical fibers
Mikko Partanen, Jukka Tulkki
Conventional theories of electromagnetic waves in a medium assume that only the energy of the field propagates inside the medium. Consequently, they neglect the transport of mass d…
Mass-polariton theory of light in dispersive media
Mikko Partanen, Jukka Tulkki
We have recently shown that the electromagnetic field in a medium is made of mass-polariton (MP) quasiparticles, which are quantized coupled states of the field and an atomic mass…