dorsal/arxiv
View SchemaAdiabatic creation of coherent superposition states via multiple intermediate states
| Authors | A. Karpati, Z Kis |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0309074 |
| URL | https://arxiv.org/abs/quant-ph/0309074 |
| DOI | 10.1088/0953-4075/36/5/310 |
| Journal | J. Phys. B-At. Mol. Opt. Phys. 36, 905-919 (2003) |
Abstract
We consider an adiabatic population transfer process that resembles the well established stimulated Raman adiabatic passage (STIRAP). In our system, the states have nonzero angular momentums $J$, therefore, the coupling laser fields induce transitions among the magnetic sublevels of the states. In particular, we discuss the possibility of creating coherent superposition states in a system with coupling pattern $J=0\Leftrightarrow J=1$ and $J=1\Leftrightarrow J=2$. Initially, the system is in the J=0 state. We show that by two delayed, overlapping laser pulses it is possible to create any final superposition state of the magnetic sublevels $|2,-2>$, $|2,0>$, $|2,+2>$. Moreover, we find that the relative phases of the applied pulses influence not only the phases of the final superposition state but the probability amplitudes as well. We show that if we fix the shape and the time-delay between the pulses, the final state space can be entirely covered by varying the polarizations and relative phases of the two pulses. Performing numerical simulations we find that our transfer process is nearly adiabatic for the whole parameter set.
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"abstract": "We consider an adiabatic population transfer process that resembles the well\nestablished stimulated Raman adiabatic passage (STIRAP). In our system, the\nstates have nonzero angular momentums $J$, therefore, the coupling laser fields\ninduce transitions among the magnetic sublevels of the states. In particular,\nwe discuss the possibility of creating coherent superposition states in a\nsystem with coupling pattern $J=0\\Leftrightarrow J=1$ and $J=1\\Leftrightarrow\nJ=2$. Initially, the system is in the J=0 state. We show that by two delayed,\noverlapping laser pulses it is possible to create any final superposition state\nof the magnetic sublevels $|2,-2\u003e$, $|2,0\u003e$, $|2,+2\u003e$. Moreover, we find that\nthe relative phases of the applied pulses influence not only the phases of the\nfinal superposition state but the probability amplitudes as well. We show that\nif we fix the shape and the time-delay between the pulses, the final state\nspace can be entirely covered by varying the polarizations and relative phases\nof the two pulses. Performing numerical simulations we find that our transfer\nprocess is nearly adiabatic for the whole parameter set.",
"arxiv_id": "quant-ph/0309074",
"authors": [
"A. Karpati",
"Z Kis"
],
"categories": [
"quant-ph"
],
"doi": "10.1088/0953-4075/36/5/310",
"journal_ref": "J. Phys. B-At. Mol. Opt. Phys. 36, 905-919 (2003)",
"title": "Adiabatic creation of coherent superposition states via multiple intermediate states",
"url": "https://arxiv.org/abs/quant-ph/0309074"
},
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