167 citations · 627 across the 9 of their papers we have counts for
9 papers
Effective Stochastic Generator with Site-dependent Interactions
Masoumeh Khamehchi, Farhad H. Jafarpour
It is known that the stochastic generators of effective processes associated with the unconditioned dynamics of rare events might consist of non-local interactions; however, it can…
Three-component soliton states in spinor Bose-Einstein condensates
T. M. Bersano, V. Gokhroo, M. A. Khamehchi +4
Dilute-gas Bose-Einstein condensates are an exceptionally versatile testbed for the investigation of novel solitonic structures. While matter-wave solitons in one- and two-componen…
Negative mass hydrodynamics in a Spin-Orbit--Coupled Bose-Einstein Condensate
M. A. Khamehchi, Khalid Hossain, M. E. Mossman +4
A negative effective mass can be realized in quantum systems by engineering the dispersion relation. A powerful method is provided by spin-orbit coupling, which is currently at the…
Vector Dark-Antidark Solitary Waves in Multi-Component Bose-Einstein condensates
I. Danaila, M. A. Khamehchi, V. Gokhroo +2
Multi-component Bose-Einstein condensates exhibit an intriguing variety of nonlinear structures. In recent theoretical work, the notion of magnetic solitons has been introduced. He…
Spin-momentum coupled Bose-Einstein condensates with lattice band pseudospins
M. A. Khamehchi, Chunlei Qu, M. E. Mossman +2
The quantum emulation of spin-momentum coupling (SMC), a crucial ingredient for the emergence of topological phases, is currently drawing considerable interest. In previous quantum…
Magnetic Shield Approach Toward Non-adiabatic Low to High Field Positron Beam Transition for Microtraps
M. A. Khamehchi, A. Narimannezhad, M. H. Weber +1
This simulation study sheds light on effectiveness of a magnetic shield on non-adiabatic transport of a positron beam from 3700G to 100G where we were able to maximize the low to h…
Measurement of collective excitations in a spin-orbit-coupled Bose-Einstein condensate
M. A. Khamehchi, Yongping Zhang, Chris Hamner +2
We measure the collective excitation spectrum of a spin-orbit coupled Bose-Einstein condensate using Bragg spectroscopy. The spin-orbit coupling is generated by Raman dressing of a…
Spin-orbit coupled Bose-Einstein condensates in a one-dimensional optical lattice
C. Hamner, Yongping Zhang, M. A. Khamehchi +2
The realization of artificial gauge fields and spin-orbit coupling for ultra-cold quantum gases promises new insight into paradigm solid state systems. Here we experimentally probe…
Study of Conduction Cooling Effects in Long Aspect Ratio Penning-Malmberg Micro-Traps
M. A. Khamehchi, C. J. Baker, M. H. Weber +1
A first order perturbation with respect to velocity has been employed to find the frictional damping force imposed on a single moving charge due to a perturbative electric field, i…