Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Schwarzschild Radius and Event Horizon01:21

Schwarzschild Radius and Event Horizon

2.9K
No object with a finite mass can travel faster than the speed of light in a vacuum. This fact has an interesting consequence in the domain of extremely high gravitational fields.
The minimum speed required to launch a projectile from the surface of an object to which it is gravitationally bound so that it eventually escapes the object’s gravitational field is called the escape velocity. The escape velocity is independent of the mass of the object. Merging the idea of escape...
2.9K
Space-Time Curvature and the General Theory of Relativity01:17

Space-Time Curvature and the General Theory of Relativity

4.8K
In 1905, Albert Einstein published his special theory of relativity. According to this theory, no matter in the universe can attain a speed greater than the speed of light in a vacuum, which thus serves as the speed limit of the universe.
This has been verified in many experiments. However, space and time are no longer absolute. Two observers moving relative to one another do not agree on the length of objects or the passage of time. The mechanics of objects based on Newton's laws of...
4.8K
Gravitation Between Spherically Symmetric Masses01:14

Gravitation Between Spherically Symmetric Masses

1.4K
The gravitational potential energy between two spherically symmetric bodies can be calculated from the masses and the distance between the bodies, assuming that the center of mass is concentrated at the respective centers of the bodies.
1.4K
Atomic Nuclei: Nuclear Relaxation Processes01:23

Atomic Nuclei: Nuclear Relaxation Processes

1.3K
In the absence of an external magnetic field, nuclear spin states are degenerate and randomly oriented. When a magnetic field is applied, the spins begin to precess and orient themselves along (lower energy) or against (higher energy) the direction of the field. At equilibrium, a slight excess population of spins exists in the lower energy state. Because the direction of the magnetic field is fixed as the z-axis,  the precessing magnetic moments are randomly oriented around the z-axis.
1.3K
Reduced Mass Coordinates: Isolated Two-body Problem01:12

Reduced Mass Coordinates: Isolated Two-body Problem

2.5K
In classical mechanics, the two-body problem is one of the fundamental problems describing the motion of two interacting bodies under gravity or any other central force. When considering the motion of two bodies, one of the most important concepts is the reduced mass coordinates, a quantity that allows the two-body problem to be solved like a single-body problem. In these circumstances, it is assumed that a single body with reduced mass revolves around another body fixed in a position with an...
2.5K
Potential Due to a Polarized Object01:29

Potential Due to a Polarized Object

869
A neutral atom consists of a positively charged nucleus surrounded by a negatively charged electron cloud. When placed in an external electric field, the external electric force pulls the electrons and nucleus apart, opposite to the intrinsic attraction between the nucleus and the electrons. The opposing forces balance each other with a slight shift between the center of masses of the nucleus and the electron cloud, resulting in a polarized atom. On the other hand, a few molecules, like water,...
869

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Self-Similar Growth of Bose Stars.

Physical review letters·2024
Same author

Gravitational Bose-Einstein Condensation in the Kinetic Regime.

Physical review letters·2018
Same author

Soliton-antisoliton pair production in particle collisions.

Physical review letters·2011
Same author

Complex trajectories in chaotic dynamical tunneling.

Physical review. E, Statistical, nonlinear, and soft matter physics·2007
Same author

Unstable semiclassical trajectories in tunneling.

Physical review letters·2007
Same author

Massive graviton as a testable cold-dark-matter candidate.

Physical review letters·2005

Related Experiment Video

Updated: Mar 8, 2026

Cooling an Optically Trapped Ultracold Fermi Gas by Periodical Driving
11:21

Cooling an Optically Trapped Ultracold Fermi Gas by Periodical Driving

Published on: March 30, 2017

7.9K

Relativistic Axions from Collapsing Bose Stars.

D G Levkov1, A G Panin1,2, I I Tkachev1

  • 1Institute for Nuclear Research of the Russian Academy of Sciences, 60th October Anniversary prospect 7a, Moscow 117312, Russia.

Physical Review Letters
|January 21, 2017
PubMed
Summary
This summary is machine-generated.

Light bosonic dark matter can form Bose stars that collapse universally. This collapse involves self-similar infall and particle ejection, halting when the star can no longer sustain the process.

More Related Videos

Setting Limits on Supersymmetry Using Simplified Models
07:46

Setting Limits on Supersymmetry Using Simplified Models

Published on: November 15, 2013

9.0K
Generation and Coherent Control of Pulsed Quantum Frequency Combs
06:42

Generation and Coherent Control of Pulsed Quantum Frequency Combs

Published on: June 8, 2018

9.8K

Related Experiment Videos

Last Updated: Mar 8, 2026

Cooling an Optically Trapped Ultracold Fermi Gas by Periodical Driving
11:21

Cooling an Optically Trapped Ultracold Fermi Gas by Periodical Driving

Published on: March 30, 2017

7.9K
Setting Limits on Supersymmetry Using Simplified Models
07:46

Setting Limits on Supersymmetry Using Simplified Models

Published on: November 15, 2013

9.0K
Generation and Coherent Control of Pulsed Quantum Frequency Combs
06:42

Generation and Coherent Control of Pulsed Quantum Frequency Combs

Published on: June 8, 2018

9.8K

Area of Science:

  • Astrophysics
  • Cosmology
  • Condensed Matter Physics

Background:

  • Axionlike particles are candidates for light bosonic dark matter.
  • These particles may condense into compact Bose stars.
  • Critical-mass Bose stars are susceptible to collapse due to attractive self-interactions.

Purpose of the Study:

  • To investigate the collapse dynamics of critical-mass Bose stars formed by axionlike particles.
  • To understand the universal mechanisms governing this collapse process.

Main Methods:

  • Studied the collapse of Bose stars through theoretical analysis.
  • Focused on nonlinear self-similar evolution (wave collapse) and particle interactions.

Main Results:

  • Bose star collapse proceeds in a universal manner driven by self-similar evolution.
  • Particles infall to the star's center, leading to collisions and an outgoing stream of relativistic particles.
  • This particle ejection halts the collapse when the star remnant cannot sustain further infall.

Conclusions:

  • Bose star collapse is a self-limiting process driven by internal dynamics.
  • The study reveals unexpected universal features in the collapse of axionlike dark matter stars.
  • Findings have potential astrophysical and cosmological implications.