Related Experiment Video
Updated: Aug 13, 2026
09:38
The Ladder Rung Walking Task: A Scoring System and its Practical Application.
Published on: June 12, 2009
Stripes on a 6-leg Hubbard ladder
Steven R White1, D J Scalapino
1Department of Physics, University of California, Irvine, California 92697, USA.
Physical Review Letters
|October 4, 2003
Summary
Researchers investigated stripe formation in Hubbard ladders, finding that stripes emerge in a 7x6 Hubbard model with four holes when the interaction parameter U/t is between 6 and 20. A domain wall feature appears at lower U/t values, but with a broader hole density.
Area of Science:
- Condensed Matter Physics
- Computational Physics
Background:
- Density Matrix Renormalization Group (DMRG) studies reveal stripe formation in doped n-leg t-J ladders.
- The behavior of stripes in n-leg Hubbard ladders remains less understood.
Purpose of the Study:
- To investigate the formation of stripes in n-leg Hubbard ladders.
- To analyze the influence of the interaction parameter (U/t) on stripe formation and hole density distribution.
Main Methods:
- Utilized a 7x6 Hubbard model with four holes.
- Performed numerical simulations to study the system's behavior across a range of U/t values.
Main Results:
- Observed stripe formation for U/t values ranging from 6 to 20.
- Identified a domain wall feature at U/t approximately 3-4.
- Noted a broadened hole density distribution at lower U/t values.
Conclusions:
- Stripe formation is confirmed in the studied Hubbard ladder system within a specific U/t range.
- The interaction strength significantly impacts the characteristics of stripe formation and hole distribution.
Related Concept Videos
03:00Standard Entropy Change for a Reaction
Entropy is a state function, so the standard entropy change for a chemical reaction (ΔS°rxn) can be calculated from the difference in standard entropy between the products and the reactants.
01:21Simple Trusses
A truss is a structural framework consisting of slender members connected at joints, designed to support external loads while minimizing material usage and weight. Simple trusses are a type of planar truss where all members lie within a single two-dimensional plane.
The most basic planar truss is a simple truss with three members arranged in a triangular formation. This triangular truss is inherently stable and rigid due to its geometry, making it an ideal starting point for creating more...
The most basic planar truss is a simple truss with three members arranged in a triangular formation. This triangular truss is inherently stable and rigid due to its geometry, making it an ideal starting point for creating more...
01:25Space Trusses
A space truss is a three-dimensional counterpart of a planar truss. These structures consist of members connected at their ends, often utilizing ball-and-socket joints to create a stable and versatile framework. The space truss is widely used in various construction projects due to its adaptability and capacity to withstand complex loads.
At the core of a space truss lies the fundamental unit known as the tetrahedron. This structure is composed of six members that form a three-dimensional shape...
At the core of a space truss lies the fundamental unit known as the tetrahedron. This structure is composed of six members that form a three-dimensional shape...
01:29Space Trusses: Problem Solving
A space truss is a three-dimensional counterpart of a planar truss. These structures consist of members connected at their ends, often utilizing ball-and-socket joints to create a stable and versatile framework. Due to its adaptability and capacity to withstand complex loads, the space truss is widely used in various construction projects.
Consider a tripod consisting of a tetrahedral space truss with a ball-and-socket joint at C. Suppose the height and lengths of the horizontal and vertical...
Consider a tripod consisting of a tetrahedral space truss with a ball-and-socket joint at C. Suppose the height and lengths of the horizontal and vertical...
01:19Lumber
Lumber is derived from logs which are harvested, debarked, and processed into long pieces with a rectangular cross-section. The transformation of logs into lumber involves multiple steps, beginning with an automated saw that slices the log into slabs. These slabs are then transported via a conveyor belt to smaller saws, where they are cut into square-edged pieces of specific widths.
Initially, the surfaces of these lumber pieces are rough, and their dimensions may vary slightly from one end to...
Initially, the surfaces of these lumber pieces are rough, and their dimensions may vary slightly from one end to...
01:23Lumber Defects
Lumber defects, which can affect both the appearance and structural integrity of wood, include a variety of growth and manufacturing flaws. Growth defects such as knots and knotholes occur where branches were once attached to the tree trunk, with knotholes forming when these knots fall out. Other natural defects include decay and insect damage, which compromise the wood's strength and durability.
Shakes are minor fractures that run along or across the wood's annual rings, while wane is...
Shakes are minor fractures that run along or across the wood's annual rings, while wane is...