Dimensional dive

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Four dimensional submarines perform a dimensional dive

A dimensional dive is a form of phase transition, specifically referring to the act of crossing the boundary layer between normal space and subspace. Dimensional dives are made possible through the use of multi-dimensional phase ballast tanks, specialized systems that manipulate the. These tanks utilize a fluid imbued with wave motion energy to adjust boundary tension.

Vessels capable of independently navigating both regular space and subspace are known as dimensional submarines. Standard spacecraft, which lack the necessary systems to perform dimensional dives independently, can enter subspace with the aid of dimensional submarines equipped with specialized equipment.

Principle

Dimensional diving works by controlling the density of the dimensional boundary through the use of multi-dimensional phase ballast tanks. These tanks are filled with wave motion energized fluid and can adjust boundary tension via wave motion resonance.

By applying suppressive wave motion resonance waves, the frequency of dimensional quakes along the boundary decreases. This generates the Reverse Energy Gradient Phenomenon, causing energy to leak from normal space into subspace and enabling a dimensional submarine to dive.

The core of a Gesh Vual engine

Ordinarily, the Reverse Energy Gradient Phenomenon would cause a vessel’s energy to dissipate into subspace. However, dimensional submarines are equipped with a Gesh Vual engine—a variant of the wave motion engine—which can place the dimensional boundary surface surrounding the hull into a state of topological insulation, thereby preventing energy leakage.

Additionally, the active wave motion resonance waves generated by the Gesh Vual engine are guided into the multi-dimensional phase ballast tanks. Through resonance with the wave motion energized fluid, these waves control the strength of the ship’s dimensional boundary, allowing precise adjustment of diving depth.

Multidimensional Quake Suppression Link

Four dimensional submarine perform a synchronized dive with the non-Gesh Vual engine-equipped battleship Yamato

To enable vessels not equipped with a Gesh Vual engine to perform dimensional dives, dimensional submarines can surround the target ship and deploy a dimensional quake interference control field in the surrounding space. Within the central region, a steady-state zone of dimensional quakes is formed, constructing a virtual boundary layer possessing a field structure effectively equivalent to normal space. In this way, the vessel avoids direct contact with subspace while maintaining submersion through indirect boundary support.

This process is known as Multi-Dimensional Quake Suppression Link.

Diagram showing the interference field deployed by two dimensional submarines around the Yamato

Because the interference control field itself provides structural buoyancy, the assisted vessel gains resistance to dimensional pressure without requiring specialized equipment.

In 2205, a coordinated group of four dimensional submarines was required to assist a single vessel in performing a dive. By 2207, just two submarines were necessary to submerge and surface a hull of about 300 meters in length. However, due to the limited functional range of the interference field, the assisting vessels must maintain close attachment using gravity anchors.

Japanese language information

次元潜航 Jigen senkō