The wormholes and quantum foam can make interstellar travel at least to the closest stars possible.

 The wormholes and quantum foam can make interstellar travel at least to the closest stars possible. 

Speed of light and quantum foam. 

Quantum foam is the lowest mode of existence. That means there is no "nothing" in a quantum universe. The quantum foam theory describes the material as a form of energy.  In that theory, there is always a quantum field in the universe and the thing that changes is that field's energy level. The reason we cannot see those fields is that. Their energy level is too low, and all energy travels to those fields. The quantum field acts like liquid or gas. 

And when some object closes the speed of light it stores kinetic energy in it. Then in the critical moment, the energy level of the particle or object turns too high. Energy starts to travel out from that object. And it just pushes quantum foam or quantum field away. That means in critical moments that particle will get into the quantum emptiness where energy starts to travel out from the particle. In this model, the quantum foam forms the "light wall" that denies particles travel faster than the speed of light in regular cases. 

The wormholes and quantum foam.

The wormhole is a tunnel through time-space. And there is a possibility that the wormhole doesn't make craft travel faster than light. But it can deny the object's vaporization. That means the wormhole just pumps energy into an object. And that energy stops time in the craft. That situation where an object gets as much energy is called an energy balance, which denies object aging. 

Things like electromagnetic wormholes can deny aging. The laser rays and radio maser rays also are wormholes. In some very futuristic models, the craft travels in a laser ray or electromagnetic wormhole. That electromagnetic wormhole requires an extremely large laser system. 

But then to the real gravitational wormholes. 

In theoretical models, the wormholes are like strings that form when electromagnetic tornados that are tight enough push the quantum foam into the form of string. The wormhole is an electromagnetic channel that acts like a laser. 

The energy that comes from the electromagnetic tornado pushes the quantum field inside that structure into the form of string. 

Mostly energy that comes from the higher energy object in a wormhole keeps it open, but energy that comes from sideways affects that structure. That thing creates the natural maser effect in that energy tunnel. 

And if another side of the wormhole is at a higher energy level than the other the string transports the object from an object that is at higher to an object that is lower energy level. So wormhole is like string in quantum foam. 

The wormhole may be a series of quantum bubbles in the denser channel of quantum foam. In that model, quantum voids are forming chains in an electromagnetic tornado. And then there is a string-looking energy channel in the middle of those bubbles. So quantum bubbles are like beads on a string of pearls and the energy string is like wire that connects those things. 

So how does Alcubierre drive work? 

The idea of WARP-drive is that it just turns energy travel into the object in a critical moment. One version of the WARP system is a bubble where craft transfers energy. The idea is that the craft can make a quantum bubble around it. 

And then, it will transfer energy to that bubble. Energy will fill the bubble and start to travel into the craft. But the energy transfer into the craft in the critical moment can have many other ways. In some models, the system drives the shockwave of quantum foam into the spacecraft's shell by using some "aerodynamic shapes". 

That model makes it possible to create spacecraft that can harvest as much energy from its environment as it uses. And that system could be the cosmic perpetual machine. 

One is to detonate antimatter in the craft. 

And in that case, the energy that comes from inside the craft will replace the energy that it loses in critical moments. The other version is the magnetic dynamic drive or MDD. The MDD's thrust is very weak. But the craft can use antimatter engines to accelerate as close to the speed of light as possible. 

After that, the MDD pulls plasma and ions against the craft's nose. That system will transfer energy to craft in critical moments.  Crafts can start to travel at least extremely close to the speed of light. And then the magnetic system pulls plasma against it. 

In some theoretical systems, the craft uses laser light or cathode rays to transport energy backward. The laser or cathode rays act like thermal pumps. And they form a situation where energy travels to the craft through its shell. The energy that travels into the craft is called negative energy. If that energy flow is strong enough it could make the craft able to travel faster than photons in the critical moment. 

https://bigthink.com/hard-science/muon-g-2-new-physics/

https://bigthink.com/hard-science/nothing-exist-quantum-foam/

https://en.wikipedia.org/wiki/Alcubierre_drive

https://en.wikipedia.org/wiki/Wormhole