Search Results - "Oi, D. K. L."

Coherent time evolution of a single-electron wave function by Kataoka, M, Astley, M R, Thorn, A L, Oi, D K L, Barnes, C H W, Ford, C J B, Anderson, D, Jones, G A C, Farrer, I, Ritchie, D A, Pepper, M

“…Observation of coherent single-electron dynamics is severely limited by experimental bandwidth. We present a method to overcome this using moving quantum dots…”
Get full text

Quantum system characterization with limited resources by Oi, D. K. L., Schirmer, S. G.

“…The construction and operation of large-scale quantum information devices presents a grand challenge. A major issue is the effective control of coherent…”
Get full text

Reference frames for Bell inequality violation in the presence of superselection rules by Paterek, T, Kurzyński, P, Oi, D K L, Kaszlikowski, D

Get full text

Reference frames for Bell inequality violation in the presence of superselection rules by Paterek, T, Kurzynski, P, Oi, D. K. L, Kaszlikowski, D

“…New J. Phys. 13, 043027 (2011) Superselection rules (SSRs) constrain the allowed states and operations in quantum theory. They limit preparations and…”
Get full text

Quantum System Identification by Bayesian Analysis of Noisy Data: Beyond Hamiltonian Tomography by Schirmer, S. G, Oi, D. K. L

“…Laser physics 20 (5), 1203-1209 (2010) We consider how to characterize the dynamics of a quantum system from a restricted set of initial states and…”
Get full text

Ancilla-driven quantum computation with twisted graph states by Anders, J., Andersson, E., Browne, D.E., Kashefi, E., Oi, D.K.L.

“…We introduce a new paradigm for quantum computing called Ancilla-Driven Quantum Computation (ADQC) which combines aspects of the quantum circuit (Deutsch,…”
Get full text

Two-Qubit Hamiltonian Tomography by Bayesian Analysis of Noisy Data by Schirmer, S. G, Oi, D. K. L

“…Phys. Rev. A 80, 022333 (2009) We present an empirical strategy to determine the Hamiltonian dynamics of a two-qubit system using only initialization and…”
Get full text

Experimental Hamiltonian identification for controlled two-level systems by Schirmer, S. G., Kolli, A., Oi, D. K. L.

“…We present a strategy to empirically determine the internal and control Hamiltonians for an unknown two-level system (black box) subject to various (piecewise…”
Get full text

Twisted Graph States for Ancilla-driven Universal Quantum Computation by Kashefi, E., Oi, D.K.L., Browne, D., Anders, J., Andersson, E.

“…We introduce a new paradigm for quantum computing called Ancilla-Driven Quantum Computation (ADQC) which combines aspects both of the quantum circuit [D…”
Get full text

Sapphire test-masses for measuring the standard quantum limit and achieving quantum non-demolition by Tobar, M. E., Ivanov, E. N., Oi, D. K. L., Cuthbertson, B. D., Blair, D. G.

Get full text

Quantum cryptography based on qutrit Bell inequalities by Kaszlikowski, Dagomir, Oi, D. K. L., Christandl, Matthias, Chang, Kelken, Ekert, Artur, Kwek, L. C., Oh, C. H.

“…We present a cryptographic protocol based upon entangled qutrit pairs. We analyze the scheme under a symmetric incoherent attack and plot the region for which…”
Get full text

The Geometry of Single-Qubit Maps by Oi, D. K. L

“…The physically allowed quantum evolutions on a single qubit can be described in terms of their geometry. From a simple parameterisation of unital single-qubit…”
Get full text

Controlled phase gate for solid-state charge-qubit architectures by Schirmer, S. G., Oi, D. K. L., Greentree, Andrew D.

“…We describe a mechanism for realizing a controlled phase gate for solid-state charge qubits. By augmenting the positionally defined qubit with an auxiliary…”
Get full text

Operational approach to the Uhlmann holonomy by Aberg, Johan, Kult, David, Sjöqvist, Erik, Oi, D. K. L

“…Physical Review A 75, 032106 (2007) We suggest a physical interpretation of the Uhlmann amplitude of a density operator. Given this interpretation we propose…”
Get full text

Quantum tomographic cryptography with Bell diagonal states: Nonequivalence of classical and quantum distillation protocols by Kaszlikowski, Dagomir, Lim, Jenn Yang, Oi, D. K. L., Willeboordse, Frederick H., Gopinathan, Ajay, Kwek, L. C.

“…We present a generalized tomographic quantum key distribution protocol in which the two parties share a Bell diagonal mixed state of two qubits. We show that…”
Get full text

Controlled phase gate for solid-state charge qubits by Schirmer, S. G, Oi, D. K. L, Greentree, A. D

“…Phys. Rev. A 71, 012325 (2005) We describe a mechanism for realizing a controlled phase gate for solid-state charge qubits. By augmenting the positionally…”
Get full text

Implementation of controlled multi-qudit operations for a solid-state quantum computer based on charge qudits by Schirmer, S. G, Greentree, A. D, Oi, D. K. L

“…We consider a mechanism to generate controllable qudit-qudit interactions in a charge-position paradigm for a quantum computer, through the use of auxiliary…”
Get full text

Quantum tomographic cryptography with Bell diagonal states: non-equivalence of classical and quantum distillation protocols by Kaszlikowski, Dagomir, Lim, Jenn Yang, Oi, D. K. L, Willeboordse, Frederick H, Gopinathan, Ajay, Kwek, L. C

“…We present a generalized tomographic quantum key distribution protocol in which the two parties share a Bell diagonal mixed state of two qubits. We show that…”
Get full text

Fidelity of Single Qubit Maps by Bowdrey, M. D, Oi, D. K. L, Short, A. J, Banaszek, K, Jones, J. A

“…Phys. Lett. A 294, 258 (2002) We describe a simple way of characterizing the average fidelity between a unitary (or anti-unitary) operator and a general…”
Get full text

Fidelity of Single Qubit Maps by Bowdrey, M. D, Oi, D. K. L, Short, A. J, Jones, J. A

“…We give a simple way of characterising the average fidelity between a unitary and a general operation on a single qubit which only involves calculating the…”
Get full text