|
| related topics |
| {photon, photons, single} |
| {states, state, optimal} |
| {qubit, qubits, gate} |
| {cos, sin, state} |
| {time, decoherence, evolution} |
| {measurement, state, measurements} |
| {state, phys, rev} |
| {state, states, entangled} |
| {light, field, probe} |
| {state, states, coherent} |
| {phase, path, phys} |
| {trap, ion, state} |
| {entanglement, phys, rev} |
| {spin, pulse, spins} |
|
Precise Creation, Characterization, and Manipulation of Single Optical
Qubits
Nicholas Peters, Joseph Altepeter, Evan Jeffrey, David Branning, Paul Kwiat
abstract: We present the theoretical basis for and experimental verification of
arbitrary single-qubit state generation, using the polarization of photons
generated via spontaneous parametric downconversion. Our precision measurement
and state reconstruction system has the capability to distinguish over 3
million states, all of which can be reproducibly generated using our state
creation apparatus. In order to complete the triumvirate of single qubit
control, there must be a way to not only manipulate single qubits after
creation and before measurement, but a way to characterize the manipulations
\emph{themselves}. We present a general representation of arbitrary processes,
and experimental techniques for generating a variety of single qubit
manipulations, including unitary, decohering, and (partially) polarizing
operations.
- oai_identifier:
- oai:arXiv.org:quant-ph/0502177
- categories:
- quant-ph
- comments:
- 15 pages, 8 figures
- arxiv_id:
- quant-ph/0502177
- journal_ref:
- Quantum Information Computation v3 p 503 (2003)
- created:
- 2005-02-26
Full article ▸
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