Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: LeviCursor: Dexterous Interaction with a Levitating Object   We present LeviCursor, a method for interactively moving a physical,
levitating particle in 3D with high agility. The levitating object can move
continuously and smoothly in any direction. We optimize the transducer phases
for each possible levitation point independently. Using precomputation, our
system can determine the optimal transducer phases within a few microseconds
and achieves round-trip latencies of 15 ms. Due to our interpolation scheme,
the levitated object can be controlled almost instantaneously with
sub-millimeter accuracy. We present a particle stabilization mechanism which
ensures the levitating particle is always in the main levitation trap. Lastly,
we conduct the first Fitts' law-type pointing study with a real 3D cursor,
where participants control the movement of the levitated cursor between two
physical targets. The results of the user study demonstrate that using
LeviCursor, users reach performance comparable to that of a mouse pointer.

37
The categories of this paper are: supr-con
15
The categories of this paper are: nucl-ex
21
The categories of this paper are: adap-org
33
The categories of this paper are: plasm-ph
2
The categories of this paper are: math
19
The categories of this paper are: eess
35
The categories of this paper are: mtrl-th
9
The categories of this paper are: nlin
20
The categories of this paper are: acc-phys
13
The categories of this paper are: quant-ph
5
The categories of this paper are: gr-qc
34
The categories of this paper are: chem-ph
23
The categories of this paper are: solv-int
12
The categories of this paper are: nucl-th
4
The categories of this paper are: cond-mat
27
The categories of this paper are: comp-gas