Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Centre National de la Recherche ScientifiqueFR588 papers
- California Institute of TechnologyUS572 papers
- Massachusetts Institute of TechnologyUS568 papers
- University of MichiganUS494 papers
- Istituto Nazionale di Fisica Nucleare, Sezione di NapoliIT453 papers
- Pennsylvania State UniversityUS448 papers
- University of Maryland, College ParkUS416 papers
- Institut National de Physique Nucléaire et de Physique des ParticulesFR412 papers
- Max Planck Institute for Gravitational PhysicsDE394 papers
- National Institute for Subatomic PhysicsNL388 papers
- Istituto Nazionale di Fisica Nucleare, Sezione di Roma IIT372 papers
- Goddard Space Flight CenterUS364 papers
18 papers · 2 filters
Effective Hamiltonians in quantum physics: resonances and geometric phase
A. R. P. Rau, D. Uskov
Effective Hamiltonians are often used in quantum physics, both in time dependent and time independent contexts. Analogies are drawn between the two usages, the discussion framed pa…
Heisenberg limited measurements with superconducting circuits
Alexandre Guillaume, Jonathan P. Dowling
We describe an assembly of N superconducting qubits contained in a single-mode cavity. In the dispersive regime, the correlation between the cavity field and each qubit results in…
Review article: Linear optical quantum computing
Pieter Kok, W. J. Munro, Kae Nemoto +3
Linear optics with photon counting is a prominent candidate for practical quantum computing. The protocol by Knill, Laflamme, and Milburn [Nature 409, 46 (2001)] explicitly demonst…
Geometric phase for SU(N) through fiber bundles and unitary integration
D. B. Uskov, A. R. P. Rau
Geometric phases are important in quantum physics and now central to fault tolerant quantum computation. For spin-1/2 and SU(2), the Bloch sphere , together with a U(1) phase,…
Classification and Quantification of Entangled Bipartite Qutrit Pure States
Feng Pan, Guoying Lu, J. P. Draayer
A complete analysis of entangled bipartite qutrit pure states is carried out based on a simple entanglement measure. An analysis of all possible extremally entangled pure bipartite…
High-fidelity linear optical quantum computing with polarization encoding
Federico M. Spedalieri, Hwang Lee, Jonathan P. Dowling
We show that the KLM scheme [Knill, Laflamme and Milburn, Nature {\bf 409}, 46] can be implemented using polarization encoding, thus reducing the number of path modes required by h…
Is there Unruh radiation?
G. W. Ford, R. F. O'Connell
It is generally accepted that a system undergoing uniform acceleration with respect to zero-temperature vacuum will thermalize at a finite temperature (the so-called Unruh temperat…
Fluctuations and Noise: A General Model with Applications
R. F. O'Connell
A wide variety of dissipative and fluctuation problems involving a quantum system in a heat bath can be described by the independent-oscillator (IO) model Hamiltonian. Using Heisen…
Feedback cooling of atomic motion in cavity QED
Daniel A. Steck, Kurt Jacobs, Hideo Mabuchi +2
We consider the problem of controlling the motion of an atom trapped in an optical cavity using continuous feedback. In order to realize such a scheme experimentally, one must be a…
Quantum Interferometric Sensors
Kishore T. Kapale, Leo D. Didomenico, Hwang Lee +2
Quantum entanglement has the potential to revolutionize the entire field of interferometric sensing by providing many orders of magnitude improvement in interferometer sensitivity.…
Quantum Computing, Metrology, and Imaging
Hwang Lee, Pavel Lougovski, Jonathan P. Dowling
Information science is entering into a new era in which certain subtleties of quantum mechanics enables large enhancements in computational efficiency and communication security. N…
Information Complexity of Quantum Gates
Subhash Kak
This paper considers the realizability of quantum gates from the perspective of information complexity. Since the gate is a physical device that must be controlled classically, it…
Extreme sub-wavelength atom localization via coherent population trapping
Girish S. Agarwal, Kishore T. Kapale
We demonstrate an atom localization scheme based on monitoring of the atomic coherences. We consider atomic transitions in a Lambda configuration where the control field is a stand…
The Vortex Phase Qubit: Generating Arbitrary, Counter-Rotating, Coherent Superpositions in Bose-Einstein Condensates via Optical Angular Momentum Beams
Kishore T. Kapale, Jonathan P. Dowling
We propose a scheme for generation of arbitrary coherent superposition of vortex states in Bose-Einstein condensates (BEC) using the orbital angular momentum (OAM) states of light.…
A Three-Stage Quantum Cryptography Protocol
Subhash Kak
We present a three-stage quantum cryptographic protocol guaranteeing security in which each party uses its own secret key. Unlike the BB84 protocol, where the qubits are transmitte…
Complete time-dependent treatment of a three-level system
A. R. P. Rau, Weichang Zhao
Both unitary evolution and the effects of dissipation and decoherence for a general three-level system are of widespread interest in quantum optics, molecular physics, and elsewher…
Decoherence in Quantum Systems
R. F. O'Connell
We discuss various definitions of decoherence and how it can be measured. We compare and contrast decoherence in quantum systems with an infinite number of eigenstates (such as the…
Four-level and two-qubit systems, sub-algebras, and unitary integration
A. R. P. Rau, G. Selvaraj, D. Uskov
Four-level systems in quantum optics, and for representing two qubits in quantum computing, are difficult to solve for general time-dependent Hamiltonians. A systematic procedure i…