[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

*To*: Starship design group <starship-design@lists.uoregon.edu>*Subject*: Re: starship-design: This and that.*From*: Steve VanDevender <stevev@efn.org>*Date*: Sun, 22 Jun 1997 18:53:46 -0700*In-Reply-To*: <33AD87F7.366A@maroon.tc.umn.edu>*References*: <970619222124_644319521@emout05.mail.aol.com><33AD87F7.366A@maroon.tc.umn.edu>*Reply-To*: Steve VanDevender <stevev@efn.org>*Sender*: owner-starship-design

"Kevin \"Tex\" Houston" writes: > The Transition past the C barrier might not be so dificult. for a > single particle, all you'd need to do is get it to make a small > tunneling jump. for example, > > 1) Accelerate to near light speed (99.99.... %) as close as you can. > 2) make a quatum jump of only a very short distance which happens in > zero time. This seems to be a common fallacy. Quantum tunnelling allows particles to pass through a potential barrier. but such tunnelling doesn't involve any fundamental change in the properties of the particle. If the particle's wave function has an observable probability of appearing outside the potential barrier, then that probability can be observed. The asymptotically rising energy and momentum of a particle as it approaches c isn't anything like a quantum potential barrier. Furthermore, to go from traveling just below c to just above c requires a fundamental change in the properties of mass. If you've also read the quantum mechanical treatment of tachyons (posted in the old LIT site, and taken from the sci.physics FAQ) then attempting a QM treatment of tachyons either results in tachyons that travel FTL but which can't be localized, or in particles that can be localized which still travel slower than c. Either way they're not useful for FTL.

**References**:**Re: starship-design: This and that.***From:*KellySt@aol.com

**Re: starship-design: This and that.***From:*"Kevin \"Tex\" Houston" <hous0042@maroon.tc.umn.edu>

- Prev by Date:
**Re: starship-design: This and that.** - Next by Date:
**Re: starship-design: Avatar encounter** - Prev by thread:
**Re: starship-design: This and that.** - Next by thread:
**Re: starship-design: This and that.** - Index(es):