Recent content by koi

If you are thinking of space and time in terms of points, then your premise is correct. However, there can not be absolutely nothing between them because a "point" in space does not exist as a zero dimension without length but rather because each unit of space has one Planck length. Think of...

Doesn't that mean that because the free ends of the string move at the speed of light that there is a finite amount of time (Planck time?) in which the vibration has to occur?

is time continuous? I'm not familiar with the world sheet (sorry, I'm just an ignorant physician). I am assuming that what you mean by continuous is that points along a range are infinitely divisible. However, time has been always "assumed" to be continuous just as distance has always been...

A string is a string is a string Waittaminnit! I take it back. All (ALL!) strings are identical, meaning a light string is the same as a bosonic string. It's the vibrations that are different as modified by a Calabi-Yau space. Perhaps the reason bosons are several Planck lengths in magnitude is...

minimum size I agree that bosonic strings can be several magnitudes of Planck length. But the point was that Planck length is minimum length. You cannot have 1.5 times Planck length because it cannot be divided. In the same light, you cannot have less than multiples of Planck time because it...

time in string theory Just posted a thread of defining time in string theory. The title is "minimum time" and its found in this (Strings, Branes and LQG) forum. In gist, the smallest unit of time is the Planck time (defined as the amount of time it takes light to travel a Planck distance)...

minimum time Regarding your questions about minimum time and space, here's a paper I wrote recently. Don't know if it makes sense but it addresses those issues exactly. I'm pasting it from my thread from the Strings forum. It probably belongs in theory development anyway. The Minimum Time...

I don't think you can think of a string as made up of points since there is nothing smaller than a string. Rather a string would be in a particular vibration state at a point in time. In one of my threads (minimum time) I stated that there is no smaller unit of time than Planck time which...

Hi guys, I am new here. Just finished reading Brian Greene's book and I wrote this paper. I have no idea if it makes good sense but it sounded right at the time. I am a medical doctor and I know no physicists to review it. If I'm violating some sort of rule, please tell me. Thanks. The...