139 results found
Rudolph T, Grover L, 2002, A 2 rebit gate universal for quantum computingA 2 rebit gate universal for quantum computing, Arxiv.org, Pages: 1-2
Spekkens RW, Rudolph T, 2002, Degrees of concealment and bindingness in quantum bit commitment protocols, Physical Review -Series A-, Vol: 65, Pages: 1-10, ISSN: 1050-2947
RUDOLPH T, SANDERS B, 2001, Requirement of optical coherence for continuous-variable quantum teleportation, Vol: 8707
Rudolph T, Pan J-W, 2001, A simple gate for linear optics quantum computing, Arxiv.org, Pages: 1-1
Rudolph T, Sanders B, 2001, Comment on "The Quantum State of a Propagating Laser Field", Arxiv.org, Pages: 1-2
VATS N, RUDOLPH T, 2001, Quantum information processing in localized modes of light within a photonic band-gap material, Vol: 48, Pages: 1495-1502
RUDOLPH T, 2000, Better schemes for quantum interrogation in lossy experiments, Vol: 85, Pages: 2925-2928
Rudolph T, 1999, Quantum Information is physical too, http://www.arxiv.org/abs/quant-ph/9904037, Vol: x, Pages: x-x
FICEK Z, RUDOLPH T, 1999, Quantum interference in a driven two-level atom, Vol: 60, Pages: R4245-R4248
BEN-ARYEH Y, FREEDHOFF H, RUDOLPH T, 1999, Photon correlations in the fluorescence from a bichromatically driven atom, Vol: 1, Pages: 624-630
Rudolph T, 1999, Quantum Triangulation and Violation of Conservation of Trouble, http://www.arxiv.org/abs/quant-ph/9902010, Vol: x, Pages: x-x
FICEK Z, FREEDHOFF H, RUDOLPH T, 1999, Dressing dressed states, Vol: 87, Pages: 670-675
RUDOLPH T, FICEK Z, 1998, Interference pattern with a dark center from two atoms driven by a coherent laser field, Vol: 58, Pages: 748-751
RUDOLPH T, FREEDHOFF H, FICEK Z, 1998, Multiphoton ac Stark effect in a bichromatically driven two-level atom, Vol: 58, Pages: 1296-1309
RUDOLPH T, FREEDHOFF H, FICEK Z, 1998, Shift of the subharmonic resonances and suppression of fluorescence in a two-level atom driven by a bichromatic field, Vol: 15, Pages: 2325-2330
RUDOLPH T, FICEK Z, FREEDHOFF H, 1998, The multiphoton AC Stark effect, Vol: 147, Pages: 78-82
RUDOLPH T, FICEK Z, DALTON B, 1995, 2-ATOM RESONANCE FLUORESCENCE IN RUNNING-WAVE AND STANDING-WAVE LASER FIELDS, Vol: 52, Pages: 636-656
Seis Y, Brown BJ, Sørensen AS, et al., Extending the memory times of trapped-ion qubits with error correction and global entangling operations
The technical demands to perform quantum error correction are considerable.The task requires the preparation of a many-body entangled state, together withthe ability to make parity measurements over subsets of the physical qubits ofthe system to detect errors. Here we propose two trapped-ion experiments torealise error-correcting codes of variable size to protect a single encodedqubit from dephasing errors. Novel to our schemes is the use of a globalentangling phase gate, which could be implemented in both Penning traps andPaul traps. We make use of this entangling operation to significantly reducethe experimental complexity of state preparation and syndrome measurements. Wealso show, in our second scheme, that storage times can be increased further byrepeatedly teleporting the logical information between two codes supported bythe same ion Coulomb crystal to learn information about the locations oferrors. We estimate that a logical qubit encoded in such a crystal willmaintain high coherence for times more than an order of magnitude longer thaneach physical qubit would.
Ashoori E, Rudolph T, Commentary on Quantum-Inspired Information Retrieval
There have been suggestions within the Information Retrieval (IR) communitythat quantum mechanics (QM) can be used to help formalise the foundations ofIR. The invoked connection to QM is mathematical rather than physical. Theproposed ideas are concerned with information which is encoded, processed andaccessed in classical computers. However, some of the suggestions have beenthoroughly muddled with questions about applying techniques of quantuminformation theory in IR, and it is often unclear whether or not the suggestionis to perform actual quantum information processing on the information. Thispaper is an attempt to provide some conceptual clarity on the emerging issues.
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