Imperial College London

ProfessorTerryRudolph

Faculty of Natural SciencesDepartment of Physics

Professor of Quantum Physics
 
 
 
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Contact

 

+44 (0)20 7594 7863t.rudolph Website CV

 
 
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Location

 

Blackett LaboratorySouth Kensington Campus

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Summary

 

Publications

Publication Type
Year
to

139 results found

Herrera-Marti DA, Fowler AG, Jennings D, Rudolph Tet al., 2010, Photonic implementation for the topological cluster-state quantum computer, Vol: 82

Journal article

JENNINGS D, RUDOLPH T, 2010, Entanglement and the thermodynamic arrow of time, Vol: 81

Journal article

Kennedy R, Horstmeyer L, Dragan A, Rudolph Tet al., 2010, Qubit initialization and readout with finite coherent amplitudes in cavity QED, Vol: 82

Journal article

LIANG Y, HARRIGAN N, BARTLETT S, RUDOLPH Tet al., 2010, Nonclassical Correlations from Randomly Chosen Local Measurements, Vol: 104

Journal article

Ahmadi M, Jennings D, Rudolph T, 2010, Dynamics of a quantum reference frame undergoing selective measurements and coherent interactions, Vol: 82

Journal article

JENNINGS D, RUDOLPH T, 2010, Comment on "Quantum Solution to the Arrow-of-Time Dilemma", Vol: 104

Journal article

BARRETT S, BARTLETT S, DOHERTY A, JENNINGS D, RUDOLPH Tet al., 2009, Transitions in the computational power of thermal states for measurement-based quantum computation, Vol: 80

Journal article

BARTLETT S, RUDOLPH T, SPEKKENS R, TURNER Pet al., 2009, Quantum communication using a bounded-size quantum reference frame, Vol: 11

Journal article

BIGGERSTAFF D, KALTENBAEK R, HAMEL D, WEIHS G, RUDOLPH T, RESCH Ket al., 2009, Cluster-State Quantum Computing Enhanced by High-Fidelity Generalized Measurements, Vol: 103

Journal article

COSTA F, HARRIGAN N, RUDOLPH T, BRUKNER Cet al., 2009, Entanglement detection with bounded reference frames, Vol: 11

Journal article

RUDOLPH T, 2009, Simple encoding of a quantum circuit amplitude as a matrix permanent, Vol: 80

Journal article

JOO J, RUDOLPH T, SANDERS B, 2009, A heralded two-qutrit entangled state, Vol: 42

Journal article

LAING A, RUDOLPH T, O'BRIEN J, 2009, Experimental Quantum Process Discrimination, Vol: 102

Journal article

LINDNER N, RUDOLPH T, 2009, Proposal for Pulsed On-Demand Sources of Photonic Cluster State Strings, Vol: 103

Journal article

JENNINGS D, DRAGAN A, BARRETT S, BARTLETT S, RUDOLPH Tet al., 2009, Quantum computation via measurements on the low-temperature state of a many-body system, Vol: 80

Journal article

Eisert J, Tyc T, Rudolph T, Sanders BCet al., 2008, Gaussian quantum marginal problem, COMMUNICATIONS IN MATHEMATICAL PHYSICS, Vol: 280, Pages: 263-280, ISSN: 0010-3616

Journal article

VARNAVA M, BROWNE D, RUDOLPH T, 2008, How good must single photon sources and detectors be for efficient linear optical quantum computation?, Vol: 1

Journal article

ZHANG Q, BAO X, LU C, al Eet al., 2008, Demonstration of a scheme for the generation of "event-ready" entangled photon pairs from a single-photon source, Vol: 77

Journal article

JOO J, KNIGHT P, O'BRIEN J, Rudolph Tet al., 2007, One-way quantum computation with four-dimensional photonic qudits, Physical Review A, Vol: 76, ISSN: 1050-2947

We consider the possibility of performing linear optical quantum computations making use of extra photonic degrees of freedom. In particular, we focus on the case where we use photons as quadbits, four-dimensional photonic qudits. The basic 2-quadbit cluster state is a hyperentangled state across polarization and two spatial mode degrees of freedom. We examine the nondeterministic methods whereby such states can be created from single photons and/or Bell pairs and then give some mechanisms for performing higher-dimensional fusion gates.

Journal article

Harrigan N, Rudolph T, 2007, Ontological models and the interpretation of contextuality

Studying the extent to which realism is compatible with quantum mechanicsteaches us something about the quantum mechanical universe, regardless of thevalidity of such realistic assumptions. It has also recently been appreciatedthat these kinds of studies are fruitful for questions relating to quantuminformation and computation. Motivated by this, we extend the ontological modelformalism for realistic theories to describe a set of theories emphasizing therole of measurement and preparation devices by introducing `hidden variables'to describe them. We illustrate both the ontological model formalism and ourgeneralization of it through a series of example models taken from theliterature. Our extension of the formalism allows us to quantitatively analyzethe meaning contextuality (a constraint on successful realistic theories),finding that - taken at face-value - it can be realized as a naturalinteraction between the configurations of a system and measurement device.However, we also describe a property that we call deficiency, which followsfrom contextuality, but does not admit such a natural interpretation. Looselyspeaking, deficiency breaks a symmetry between preparations and measurements inquantum mechanics. It is the property that the set of ontic states which asystem prepared in quantum state psi may actually be in, is strictly smallerthan the set of ontic states which would reveal the measurement outcome psiwith certainty.

Journal article

Harrigan N, Rudolph T, Aaronson S, 2007, Representing probabilistic data via ontological models

Ontological models are attempts to quantitatively describe the results of aprobabilistic theory, such as Quantum Mechanics, in a framework exhibiting anexplicit realism-based underpinning. Unlike either the well knownquasi-probability representations, or the "r-p" vector formalism, these modelsare contextual and by definition only involve positive probabilitydistributions (and indicator functions). In this article we study how theontological model formalism can be used to describe arbitrary statistics of asystem subjected to a finite set of preparations and measurements. We presentthree models which can describe any such empirical data and then discuss how toturn an indeterministic model into a deterministic one. This raises the issueof how such models manifest contextuality, and we provide an explicit exampleto demonstrate this. In the second half of the paper we consider the issue offinding ontological models with as few ontic states as possible.

Journal article

BARTLETT S, RUDOLPH T, SANDERS B, al Eet al., 2007, Degradation of a quantum directional reference frame as a random walk, Vol: 54, Pages: 2211-2221

Journal article

BARTLETT S, RUDOLPH T, SPEKKENS R, 2007, Reference frames, superselection rules, and quantum information, Vol: 79, Pages: 555-609

Journal article

KIELING K, RUDOLPH T, EISERT J, 2007, Percolation, renormalization, and quantum computing with nondeterministic gates, Vol: 99

Journal article

VARNAVA M, BROWNE D, RUDOLPH T, 2007, Loss tolerant linear optical quantum memory by measurement-based quantum computing, Vol: 9

Journal article

AUDENAERT K, GODSIL C, ROYLE G, al Eet al., 2007, Symmetric squares of graphs, Vol: 97, Pages: 74-90

Journal article

Rudolph T, 2006, Ontological Models for Quantum Mechanics and the Kochen-Specker theorem

Certain concrete "ontological models" for quantum mechanics (models in whichmeasurement outcomes are deterministic and quantum states are equivalent toclassical probability distributions over some space of `hidden variables') areexamined. The models are generalizations of Kochen and Specker's such model fora single 2-dimensional system - in particular a model for a three dimensionalquantum system is considered in detail. Unfortunately, it appears the models donot quite reproduce the quantum mechanical statistics. They do, however, comeclose to doing so, and in as much as they simply involve probabilitydistributions over the complex projective space they do reproduce pretty mucheverything else in quantum mechanics. The Kochen-Specker theorem is examined in the light of these models, and therather mild nature of the manifested contextuality is discussed.

Journal article

DOWLING M, BARTLETT S, RUDOLPH T, al Eet al., 2006, Observing a coherent superposition of an atom and a molecule, Vol: 74

Journal article

BARTLETT S, RUDOLPH T, SPEKKENS R, 2006, Dialogue concerning two views on quantum coherence: Factist and fictionist, Vol: 4, Pages: 17-43

Journal article

BRUKNER C, PAUNKOVIC N, RUDOLPH T, al Eet al., 2006, Entanglement-assisted orientation in space, Vol: 4, Pages: 365-370

Journal article

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