Philip R. Johnson:    Papers and Talks

1.       Preparing and probing atomic number states with an atom interferometer, J. Sebby-Strabley, B.L. Brown, M. Anderlini, P.J. Lee, P.R. Johnson, W.D. Phillips, J.V. Porto, Submitted to Physical Review Letters (2007); quant-ph/0701110.

2.       A phase diagram for the Bose-Einstein condensation of magnons in nanostructures, L.H. Bennett, E. Della Torre, P.R. Johnson, and R.E. Watson, to appear in Journal of Applied Physics (2007).

3.       Controlling the quantum world: from superconducting qubits to optical lattices, submitted to the Journal of Intelligence Community Research and Development (2006).

4.       Collisional de-excitation in a quasi-2D degenerate Bose gas, I.B. Spielman, P.R. Johnson, J.H. Huckans, C.D. Fertig, S.L. Rolston, W.D. Phillips, J.V. Porto, Physical Review A 73, 020702, Rapid Communications (2006); cond-mat/0509079.

5.       Initializing the flux state of multi-well inductively isolated Josephson junction qubits, T.A. Palomake, S.K. Dutta, H. Paik, H. Xu, J. Matthews, R.M. Lewis, R.C. Ramos, K. Mitra, P.R. Johnson, F.W. Strauch, A.J. Dragt, C.J. Lobb, J.R. Anderson, and F.C. Wellstood, Physical Review B 73, 014520 (2006).

6.       Is Quantum cryptography provably secure?, Tassos Nakassis, J.C. Bienfang, P. Johnson, A. Mink, D. Rogers, X. Tang, C.J. Williams, submitted to Proceeding of SPIE Defense and Security Symposium, (2006).

7.       Macroscopic tunnel splittings in superconducting phase qubits, P.R. Johnson, W. T. Parsons, F.W. Strauch, J.R. Anderson, A.J. Dragt, C.J. Lobb, F.C. Wellstood, Physical Review Letters 94, 187004 (2005); preprint version: quant-ph/0411181.

8.       Spectroscopy of three particle entanglement in a macroscopic quantum circuit, H. Xu, F.W. Strauch, S. Dutta, P.R. Johnson, R.C. Ramos, A.J. Berkley, H. Paik, J.R. Anderson, A.J. Dragt, C.J. Lobb, F.C. Wellstood, Physical Review Letters 94, 027003 (2005); cond-mat/0409284.

9.       Quantum Collisions in Hyperspace: Dark Energy from a Confined BEC, essay entered into Amazing Light: Visions for Discovery, Young Scholars Competition in honor of Charles Townse (2005); NIST BIB Record Number: G2005-2091.

10.    Spectroscopic resonance broadening in a Josephson junction qubit due to current noise, H. Xu, A.J. Berkley, R.C. Ramos, M.A. Gubrud, P.R. Johnson, F.W. Strauch, A.J. Dragt, J.R. Anderson, C.J. Lobb, F.C. Wellstood, Physical Review B 71, 064512 (2005).

11.    Uniformly accelerated charge in a magnetic field: from classical radiation to Unruh effect, P.R. Johnson and B.L. Hu, Foundations of Physics, Vol. 35, number 7 (2005); gr-qc/0501029.

12.    A Cooper-Pair box as a variable capacitor, H. Paik, A.J. Berkley, H. Xu, S.K. Dutta, F.W. Strauch, P.R. Johnson, A.J. Dragt, J.R. Anderson, C.J. Lobb, F.C. Wellstood, IEEE Transactions on Applied Superconductivity 15, 884 (2005).

13.    Quantum control of superconducting phase qubits, P.R. Johnson, F.W. Strauch, A.J. Dragt, J.R. Anderson, C.J. Lobb, F.C. Wellstood, Proceeding of SPIE Defense and Security Symposium, Vol. 5436 (2004).

14.    Quantum logic gates for coupled superconducting phase qubits, F.W. Strauch, P.R. Johnson, A.J. Dragt, C.J. Lobb, J.R. Anderson, F. C. Wellstood, Physical Review Letters 91, 167005 (2003); preprint version: quant-ph/0303002.

15.    Spectroscopy of capacitively coupled Josephson-junction qubits, P.R. Johnson, F.W. Strauch, A.J. Dragt, R.C. Ramos, C. J. Lobb, J.R. Anderson, F. C. Wellstood, Physical Review B 67, 020509 (Rapid Communications) (2003); cond-mat/0210278. 

16.    Entangled macroscopic quantum states in two superconducting qubits, A.J. Berkley, H. Xu, R.C. Ramos, M.A. Gubrud, F.W. Strauch, P.R. Johnson, J.R. Anderson, A.J. Dragt, C.J. Lobb, and F.C.Wellstood, Science 300, 1548 (Issue of June 6, 2003).

17.    Defining entanglement, A.J. Berkley, H. Xu, R.C. Ramos, M.A. Gubrud, F.W. Strauch, P.R. Johnson, J.R. Anderson, A.J. Dragt, C.J. Lobb, and F.C.Wellstood, Letter to Science 301, 1183 (Issue of August 29, 2003).

18.    Capacitively coupled Josephson junctions: A two-qubit system, R.C. Ramos, F.W. Strauch, P.R. Johnson, A.J. Berkley, H. Xu, M.A. Gubrud, J.R. Anderson, C.J. Lobb, A.J. Dragt, and F.C. Wellstood, IEEE Transactions on Applied Superconductivity 13, 994 (2003).

19.    Josephson-junction qubits: entanglement and coherence, J.R. Anderson, A.J. Berkeley, A.J. Dragt, M.A. Gubrud, P.R. Johnson, C.J. Lobb, R.C. Ramos, F.W. Strauch, F.C. Wellstood, and H.Z. Xu, Superlattices and Microstructures, Elsevier Science (2003).

20.    Single Josephson junctions as qubits, J.R. Anderson, A.J. Berkley, A.J. Dragt, S. Dutta, M.A. Gubrud, P.R. Johnson, C.J. Lobb, R.C. Ramos, F.W. Strauch, F.C. Wellstood, H.Z. Xu, Supperlattices and Microstructures, Vol. 32, Elsevier Science (2003).

21.    Uniformly accelerated charge in a magnetic field: from classical radiation to Unruh effect, P.R. Johnson and B.L. Hu, Foundations of Physics, Vol. 35, number 7 (2005); gr-qc/0501029.

22.    Moving charges, detectors and mirror in a quantum field with backreaction, Bei-Lok Hu, Chad R Galley, and Philip R. Johnson, Proceedings of the Sixth Workshop on Quantum field theory under the influence of external conditions, Rinton Press (2003); quant-ph/0402002.

23.    Stochastic Theory of Relativistic Particles Moving in a Quantum Field: Radiation Reaction, Vacuum Fluctuations, and the Abraham-Lorentz-Dirac-Langevin Equation, P. R. Johnson and B. L. Hu, Physical Review D 65, 065015 (2002); quant-ph/0101001.

24.    Is Radiation Reaction in QED Casual?, P.R. Johnson, in the proceedings of the Seventh International Wigner Symposium, (2002).

25.    Worldline Influence Functional: Abraham-Lorentz-Dirac-Langevin Equation from QED, P.R. Johnson and B.L. Hu, in Quantum Aspects of Beam Physics, 18th Advanced IFCA Beam Dynamics Workshop, edited by Pisin Chen, World Scientific, Singapore (2001); quant-ph/0012134.

26.    Beyond the Unruh Effect, B.L. Hu and P.R. Johnson, in Quantum Aspects of Beam Physics, 18th Advanced IFCA Beam Dynamics Workshop, edited by Pisin Chen, World Scientific, Singapore (2001); quant-ph/0012135.

27.    The Propagation of Quantum Relativistic Wavepackets in Electromagnetic Fields, P.R. Johnson and A.J. Dragt, PAC-2001-TPPH050, (2001); in the proceedings of  the Particle Accelerator Conference (PAC2001), Chicago (2001).

28.    Relativistic Particle Trajectories from Worldline Path Integral Quantization, P.R. Johnson, PAC-2001-TPPH051, (2001); in the proceedings of the Particle Accelerator Conference (PAC2001), Chicago, (2001).

29.    Stochastic Theory of Relativistic Particles Moving in a Quantum Field: Influence Functional and Langevin Equation, P.R. Johnson and B.L. Hu, (2001); quant-ph/0012137.

30.    Charged particle quantum optics, Philip R. Johnson and Alex J. Dragt, University of Maryland Technical Report (2003).

31.    Decoherence in Superconducting Devices, P.R. Johnson and A.J. Dragt, University of Maryland Technical Report, (2001).

32.    The Nonequilibrium Quantum Dynamics of Particles and Fields, P.R. Johnson, Ph.D. Dissertation, University of Maryland, Department of Physics (1999).

33.    Par Creation of Quantum Black Holes, P.R. Johnson, Scholarly paper for Physics M.S. (1995).

34.    Quench of the Superconducting State in Tin by Magnetic Fields, P.R. Johnson, University of Maryland Graduate Laboratory (1993).

35.    Chaos in the Nonlinear LCR Circuit, P.R. Johnson, University of Maryland Graduate Laboratory (1993).

 

Talks:

1.       Scalable gates and architectures for quantum computing, IC Postdoctoral Research Colloquium, Virginia (2006).

 

2.       Simulating the Quantum World, Invited Talk at Haverford College (2006).

 

3.       Quantum repeaters for a global communication network, Quantum Information Seminar, George Mason University, Virginia (2005).

 

4.       If Saturn can have rings, why not a BEC! Quantum information and Bose Einstein Condensate Seminar at NIST, Gaithersburg (2005).

 

5.       Scalable logic for quantum computing, DCI Postdoctoral Research Program Colloquium, Virginia (2005).

 

6.       Quantum computing with superconducting qubits, Invited Colloquium Talk at Drexel University, Philadelphia (2005).

 

7.       Macroscopic tunnel splittings in extremely asymmetric superconducting qubits, Contributed talk at March APS, Los Angeles (2005).

 

8.       Theory and simulation of quantum logic sin superconductors, Quantum Information Theory and Practice, NIST, Gaithersburg (2005).

 

9.       Quantum mechanics on a grid: from superconducting qubits to relativistic particles, Invited talk at the Feynman Festival, College Park, Maryland (2004).

 

10.    Numerical relativistic quantum wavepackets, Invited plenary at 4th Biennial Conference of the International Association for Relativistic Dynamics, Saas Fee, Switzerland (2004).

 

11.    Quantum control of superconducting phase qubits, Invited talk at SPIE Defense and Security Symposium, Orlando (2004).

 

12.    Quantum computing with superconductors, Invited talk, University of Maryland Baltimore County (2004).

 

13.    Quantum mechanical propagation of relativistic wavepackets, Dynamical Systems and Accelerator Theory seminar, University of Maryland (2004).

 

14.    Distinguishing quantum from classical in superconducting tunnel junctions, Quantum Coherence and Information seminar, University of Maryland (2004).

 

15.    Quantum computing with superconducting phase devices, Invited talk at Naval Research Laboratory, Washington, D.C. (2003).

 

16.    Capacitively coupled Josephson-junction qubits, Invited talk at Laboratory for Physical Sciences (2003).

 

17.    Quantum logic gates for capacitively coupled Josephson-junction qubits, Invited talk at Simons Conference of Quantum and Reversible Computation, State University of New York, Stony Brook (2003).

 

18.    Misunderstanding of the Unruh effect: An analysis of some proposed detection schemes, Joint Gravitation Theory and Quantum Coherence seminar, University of Maryland (2003).

 

19.    Macroscopic quantum mechanics of Josephson-junction qubits, Quantum Coherence and Information Seminar, University of Maryland (2003).

 

20.    Spectroscopy of capacitively coupled junction qubits, Contributed talk at March APS, Austin (2003).

 

21.    Quantum computing with Josephson-junctions, Superconductivity Seminar, University of Maryland (2002).

 

22.    Spinor quantum optics, Contributed talk at Sixth Charged Particle Optics Conference, (2002).

 

23.    Numerically simulating quantum tunneling, Quantum Coherence and Information Seminar, University of Maryland (2002).

 

24.    Worldline Influence Functional, Invited talk at Seventh International Wigner Symposium (2001).

 

25.    The numerical propagation of quantum relativistic wavepackets in electromagnetic fields, Poster at Particle Accelerator Conference (PAC2001), Chicago (2001).

 

26.    Relativistic particle trajectories from worldline path integral quantization, Poster at Particle Accelerator Conference (PAC2001), Chicago (2001).

 

27.    Propagation of relativistic wavepackets through magnetic fields, Dynamical Systems and Accelerator Theory Seminar, University of Maryland (2001).

 

28.    Decoherence of Superconducting Quantum Interference Devices, Supercomputing Quantum Computing Seminar, University of Maryland (2001).

 

29.    The Abraham-Lorentz-Dirac Equation, Invited Talk at The 18th Advanced ICFA Beam Dynamics Workshop on Quantum Aspects of Beam Physics, Capri, Italy (2000).

 

30.    Synchrotron Radiation: Radiation Reaction, Quantum Radiation, and Emittance Growth and Reduction, Dynamical Systems and Accelerator Theory Seminar, University of Maryland (2000).

 

31.    The Quantum Relativistic Theory of Radiation Reaction, Dynamical Systems and Accelerator Theory Seminar, University of Maryland (2000).

 

32.    Decoherence, SQUIDS, and the Feynman-Vernon Influence Functional from Path Integral Quantization, Supercomputing Quantum Computing Seminar, University of Maryland (2000).

 

33.    Decoherence and Dissipation in Quantum Open Systems, Supercomputing Quantum Computing Seminar, University of Maryland (2000).

 

34.    Development of a Mentorship and Teaching Assistant Training Program, Contributed talk at American Association of Physics Teachers Summer Meeting, Spokane, Washington (1995).

 

35.    Nonequilibrium Quantum Dynamics of Particle and Fields, Ph.D. Thesis Defense, University of Maryland, (December, 1999).

 

36.    Radiation Reaction and Vacuum Fluctuations, General Relativity and Gravitation Theory Seminar, University of Maryland (1999).

 

37.    Introduction to String Theory and Quantum Gravity, Graduate Student Research Presentation, University of Maryland (1998).

 

38.    Alternatives to Standard Quantum Mechanics, General Relativity and Gravitation Theory Seminar, University of Maryland (1997).

 

39.    Quantum Pair Creation of Black Holes, Graduate Student Research Presentation, University of Maryland (1995).

 

40.    Quantum Gravity and the Problem of Time, Graduate Student Research Presentation, University of Maryland (1995).

 

41.    The Kinematic Origin of Hawking Radiation, Graduate Student Research Presentation, University of Maryland (1994).