PAST EVENTS

Qulink Seminar



















































































































































































































































































































































































































































































































































































































32nd Qulink Seminar	Date/Time: 13 April 2007 / 14:00-
	Speaker: Prof. V. P. Belavkin
	Title: On entangled quantum entropies, conditional information and capacity


31TH, 2007	Date:	08th February 2007
	Speaker:	Dr. Akira Kitagawa(NICT)
	Title:	Entanglement quantification with Fisher information
		abstract


Special Seminar 2007	Date:	23 January 2007
	Speaker:	Yasser Omar (Technical University of Lisbon)
	Title:	Particle Statistics: a Resource for Quantum Information Processing
		abstract


30TH, 2007	Date:	25th January 2007
	Speaker:	Dr. Atsushi Tanaka (Tokyo Metropolitan University)
	Title:	Cheon's anholonomies in quantum map
		abstract


29TH, 2006	Date:	14th December 2006
	Speaker:	Keiichi Shigechi (The University of Tokyo)
	Title:	Integrable Loop Models, Spin Chains and Hecke Algebra
		abstract


28TH, 2006	Date:	30th November 2006
	Speaker:	Dr. Neill Lambert (The University of Tokyo)
	Title:	Noise and entanglement in non-equilibrium quantum dots
		abstract


27TH, 2006	Date:	9th November 2006
	Speaker:	Dr. Peter van Loock (NII)
	Title:	Universal Quantum Computation with Gaussian Continuous-Variable Cluster States
		abstract


26TH, 2006	Date:	26th October 2006
	Speaker:	Dr. Andrew Greentree (University of Melbourne)
	Title:	Silicon and diamond: two outstanding media for quantum information processing
		abstract


25TH, 2006	Date:	28th September 2006
	Speaker:	Dr. Kaoru Shimizu(NTT Basic Research Laboratories)
	Title:	Pair-wise entanglement and quantum phase transition of quantum spin chains
		abstract


24TH, 2006	Date:	13th July 2006
	Speaker:	Francesco Buscemi (ERATO-SORST)
	Title:	Information flow in decoherence process
		abstract


23TH, 2006	Date:	22th June 2006
	Speaker:	Dr. Tohya Hiroshima(ERATO)
	Title:	Monogamy inequality for distributed Gaussian entanglement
		abstract


22TH, 2006	Date:	8th June 2006
	Speaker:	Mr. Koji Azuma(The University of Tokyo, Japan)
	Title:	Quantum cloning with nonlocal assistance: Complement of Jozsa's stronger no-cloning theorem
		abstract


21TH, 2006	Date:	25th May 2006
	Speaker:	Dr. Yodai Watanabe(NII, Japan)
	Title:	Security proof of the BB84 protocol in practical implementation
		abstract


20TH, 2006	Date:	11 May 2006
	Speaker:	Oka Takashi(the University of Tokyo)
	Title:	Zener breakdown in Mott insulators and a quantum walk analysis
		abstract


19TH, 2006	Date:	27 April 2006
	Speaker:	Dr. Kiyoshi Tamaki(NTT Basic Research Laboratories)
	Title:	On the performance of two protocols: SARG04 and BB84
		abstract


Special Seminar 2006	Date:	24 April 2006
	Speaker:	Prof. Samuel L. Braunstein (York University, UK)
	Title:	Quantum information with continuous variables
		abstract


18TH, 2006	Date:	13 April 2006
	Speaker:	Dr. Damian Markham(the University of Tokyo)
	Title:	Multiparty entanglement and LOCC state discrimination
		abstract


17TH, 2005	Date:	08 December 2005
	Speaker:	Dr. Cyrus Master (Stanford University and NII)
	Title:	Error avoidance in the quantum search algorithm by judicious gate design
		abstract


16TH, 2005	Date:	09 November 2005
	Speaker:	Dr. Chip Elliott (BBN, U.S.A.)
	Title:	BBN's Quantum Networktest bed


15TH, 2005	Date:	27 October 2005
	Speaker:	Hoshang Heydari (Nihon University)
	Title:	Quantum entanglement measure for general pure multipartite states
		abstract


14TH, 2005	Date:	13 October 2005
	Speaker:	Prof. Tim C. Ralph (University of Queensland)
	Title:	Quantum Time Machines: What? Why? and (maybe) How?
		abstract


Special Lecture, 2005	Date:	04 October 2005
	Speaker:	Professor Sir Peter L. Knight(Blackett Laboratory, Imperial College London
	Title:	Manipulating Cold Atoms for Quantum Information Processing
		abstract


13TH, 2005	Date:	22 September 2005
	Speaker:	Shingo Fujiwara (the University of Tokyo)
	Title:	Simulation of Ion-trap Quantum Computation
		abstract


12TH, 2005	Date:	22 June 2005(Wed.)
	Speaker1:	Pranab Sen(NEC Labs America)
	Title:	Random Measurement Bases, Distinguishing Quantum States and Applications to the Hidden Subgroup Problem
		abstract
	Speaker2:	Martin Rötteler(NEC Labs America)
	Title:	Constructions of Mutually Unbiased Bases
		abstract


11TH, 2005	Date:	9 June 2005
	Speaker:	Tomoyuki Horikiri(PhD student, The University of Tokyo, Japan)
	Title:	Quantum key distribution with a heralded single photon source and a photon number resolving detector
		abstract


10TH, 2005	Date:	26 May 2005
	Speaker:	Masaki Owari(the University of Tokyo, Japan)
	Title:	Local copying and its relationship with Local discrimination
		abstract


9TH, 2005	Date:	28 April 2005
	Speaker:	Dr. Akira Kitagawa
	Title:	Effective squeezing enhancement via measurement-induced non-Gaussian operation and its application to dense coding scheme
		abstract


8TH, 2005	Date:	14 April 2005
	Speaker:	Francois Legall(Technical Assistant, ERATO / doctoral course student, The University of Tokyo)
	Title:	An Efficient Quantum Algorithm for the Hidden Subgroup Problem over a Class of non-Abelian Groups
		abstract


7TH, 2005	Date:	24 March 2005
	Speaker:	Dr. Koji Maruyama
	Title:	Does the second law imply the Holevo bound?
		abstract


Special Talk, 2005	Date:	23 March 2005
	Speaker:	Prof. David Avis (Computer Science, McGill University, Canada)
	Title:	A few million more Bell inequalities
		abstract


Special Talk, 2005	Date:	16 March 2005
	Speaker:	Hirotada Kobayashi(ERATO, Japan)
	Title:	Exact Quantum Algorithms for the Leader Election Problem
		abstract


6TH, 2005	Date:	24 February 2005
	Speaker:	Dr. Xiang-Bin Wang (ERATO)
	Title:	Beating the PNS attack for QKD with coherent light
		handouts(pdf 96KB)


Special Lecture, 2005	Date:	15-16 February 2005
	Speaker:	Dr. Vincent Danos (CNRS, UniversitéParis VII)
	Title:	Measurement based quantum computing
		program poster(pdf)


5TH, 2005	Date:	10th February 2005
	Speaker:	Dr. Masahiro Takeoka (NICT, Japan)
	Title:	Implementation of quantum measurements with linear optics and continuous photon counting
		abstract


4TH, 2005	Date:	13th January 2005
	Speaker:	Dr. Tim Byrnes (NII)
	Title:	Simulating Lattice Gauge Theory on a Quantum Computer
		abstract


3RD, 2004	Date:	25th November 2004
	Speaker:	Dr. Fumiko Yamaguchi (Stanford University/Keio University)
	Title:	Solid-state NMR quantum computation
		abstract


2ND, 2004	Date:	19th November 2004
	Speaker:	Prof. Samuel L. Braunstein (York University, UK)
	Title:	State estimation on a circle



1ST, 2004	Date:	14th October 2004
	Speaker:	Dr. Keiji Saito (University of Tokyo)
	Title:	Nonadiabatic Manipulation in Discrete-Level systems and Its Application
		abstract



NII QIS Open Seminar

4TH, 2004	Date:	8th July 2004
	Speaker:	Mr. Owari (University of Tokyo)
	Title:	Entanglement convertibility for infinite dimensional pure bipartite states
		abstract


3RD, 2004	Date:	15th June 2004
	Speaker:	Professor Seth Lloyd (MIT)
	Title:	Adaptive quantum coding via weak measurements
		abstract


2ND, 2004	Date:	27th May 2004
	Speaker:	Dr. Elham Kashefi (Computing Laboratory Oxford University)
	Title:	On Complexity of Quantum Languages
		abstract


1ST, 2004	Date:	22nd April 2004
	Speaker:	Rod Van Meter (Keio University, Japan)
	Title:	Communications Topology and Distribution of the Quantum Fourier Transform
		abstract handouts(pdf 2.4MB)


4TH, 2003	Date:	9th March 2004
	Speaker:	Prof. Gerard J. Milburn (Centre for quantum computer technology, University of Queensland, Australia)
	Title:	Quantum phase transitions in an ion trap quantum computer.
		abstract


3RD, 2003	Date:	12th February 2004
	Speaker:	Damian Markham (Imperial College)
	Title:	Some uses of the Majorana Representation, an extension of the Bloch Sphere.
		abstract


2ND, 2003	Date:	15th October 2003
	Speaker:	Shigeki Takeuchi (Hokkaido University)
	Title:	Generation of highly packed single photon states and entangled two photon states
		abstract


1ST,2003	Date:	28th August 2003
	Speaker1:	Bill Munro (Hewlett Packard Labs, Bristol, UK)
	Title:	An introduction to linear optical quantum computation
		abstract

	Speaker2:	Dan Browne (QOLS, Blackett Laboratory, Imperial College London, UK)
	Title:	Entanglement Distillation with Linear Optics
		abstract



NII QIS Informal Seminar

2ND, 2003	Date:	September 11th, 2003
	Speaker1:	Damian Markham (Imperial College)
	Title:	Entanglement Generation from Thermal Spin States via Unitary Beam Splitters
		abstract

	Speaker2:	S. Virmani (Imperial College)
	Title:	Observing quantum states using LOCC
		abstract

	Speaker3:	K. Maruyama (Imperial College)
	Title:	Thermodynamical Bell's inequalities
		abstract


1ST,2003	Date:	September 10th, 2003
	Speaker:	Sean Barrett (Hewlett-Packard Labs, Bristol, UK)
	Title:



UT-NII QIS Regular Meeting

2ND, 2004	Date:	15th September 2004
	Speaker:	Dr. Anthony Chefles (University of Hertfordsh)
	Title:	Unambiguous Quantum State Comparison
		abstract


1ST, 2004	Date:	8th April 2004
	Speaker:	H.Imai (University of Tokyo, Japan)
	Title:	Qubit Channels which Require 4 Input States to Achieve the Capacity: Implications for Additivity Conjecture
		handouts(pdf 128KB)


7TH, 2003	Date:	11th March 2004
	Speaker:	Dr. Atsushi Yabushita
	Title:	広帯域パラメトリック光子対の発生とその微弱光分光等への応用実験
		abstract(in Japanese)


6TH, 2003	Date:	19th February 2004
	Speaker:	Prof. Seth Lloyd (MIT/NEC)
	Title:	How to build a quantum computer
		abstract


5TH, 2003	Date:	8th January 2004
	Speaker:	Keiji Matsumoto(NII)
	Title:


4TH, 2003	Date:	13th November 2003
	Speaker:	Dr. Takao Aoki (Furusawa-group, Tokyo Univ.)
	Title:	Teleportation network and teleportation of squeezed states
		abstract(in Japanese)


3RD, 2003	Date:	9th October 2003
	Speaker1:	Prof. Masanao Ozawa (Tohoku University)
	Title:	保存則に起因するデコーヒーレンスと不確定性原理
		abstract(in Japanese)

	Speaker2:	Miyake (UT).
	Title:


2ND, 2003	Date:	12th September 2003
	Speaker:	Dr. Anthony Chefles (University of Hertfordshire, UK)
	Title:	When is LOCC unambiguous state discrimination possible?
		abstract


1ST, 2003	Date:	22th August 2003
	Speaker1:	Keiji Ono
	Title:	「量子ドットの電子スピンー核スピン結合」
	Speaker2:	Prof. Yoshihisa Yamamoto(NII)
	Title:	「NMR量子コンピュータの現状」



Qulink Workshop / UT-NII QIS Workshop

2ND, 2005	Date:	3rd March 2005
	Speaker1:	Bill Munro (Hewlett-Packard Labs, Bristol, UK)

	Title:	Weak optical noninearities - a new path to truly efficient and scalable quantum computation
		abstract

	Speaker2:	Sean Barrett (Hewlett-Packard Labs, Bristol, UK)

	Title:	Efficient high-fidelity quantum computation using matter qubits and linear optics
		abstract

	Speaker3:	Andrew Greentree (University of Melbourne, AUS)

	Title:	Towards solid-state QED - battling inhomogeneities
		abstract


1ST, 2004	Date:	26th March 2004
	Speaker1:	Cyrus Master (Stanford University, USA)
	Title:	Efficiency of an ensemble quantum algorithm for free energy calculations
		abstract

	Speaker2:	Bill Munro (Hewlett-Packard Labs, Bristol, UK)

	Title:	Inferring superposition and entanglement in evolving systems from measurements in a single basis
		abstract

	Speaker3:	Mio Murao (University of Tokyo, Japan)

	Title:	Asymmetric quantum information sharing between two parties
		abstract

	Speaker4:	Alexei Gilchrist (University of Queensland, Australia)

	Title:	Distance measures to compare real and ideal quantum processes
		abstract

	Speaker5:	Fumiaki Morikoshi (NTT Basic Research Laboratories, Japan)

	Title:	Thermodynamical detection of entanglement by Maxwell's demons
		abstract

	Speaker6:	Peter van Loock (National Institute of Informatics, Japan)

	Title:	Measurements for Quantum Communication using Linear Optics
		abstract

	Speaker7:	Shigeru Yamashita (Graduate School of Information Science, Nara Institute of Science and Technology, Japan)

	Title:	Quantum Sampling and Its Applications
		abstract



Workshop on Quantum Statistics and Related Topics

	Date:	27th January 2005
	Speaker1:	Masahiro Hotta and Masanao Ozawa (Tohoku University)
	Title:	Quantum Estimation by Local Observables
		abstract(in Japanese,pdf)

	Speaker2:	Fumio Hiai (Tohoku University)
	Title:	Free Analogues of Cramer-Rao Inequality and Powers Factors
		abstract(pdf)

	Speaker3:	Hiroshi Imai and Akio Fujiwara (Osaka University)
	Title:	Quantum Cramer-Rao type evaluation in asymptotic estimation of 2-dimensionalunitary channel
		abstract1(in Japanese, pdf), abstract2(in Japanese, pdf)

	Speaker4:	Manuel A. Ballester (University of Utrecht)
	Title:	Estimation of SU(d) using entanglement
		abstract(pdf)

	Date:	28th January 2005
	Speaker1:	Keiji Matsumoto (National Institute of Informatics)
	Title:	Query complexity and quantum estimation
		abstract(pdf)

	Speaker2:	Akihisa Hayashi, Takaaki Hashimoto, and Minoru Horibe (Fukui University)
	Title:	Optimal quantum state estimation of pure states by finite-elements POVM
		abstract(in Japanese, pdf)

	Speaker3:	Leong Chuan KWEK (Nanyang Technological University)
	Title:	Quantum entanglement and Bell inequalities
		abstract(pdf)

	Speaker4:	Masahito Hayashi (ERATO)
	Title:	First order asymptotic theory of testing for maximally entangled state
		abstract(in Japanese, pdf)

	Speaker5:	Yoshiyuki Tsuda (Chuo University, COE), Bao-Sen Shi(ERATO), Akihisa Tomita(ERATO), Masahito Hayashi (ERATO), Keiji Matsumoto(ERATO,NII), and Yun Kun Jiang(ERATO)
	Title:	Hypothesis Testing for Entanglement with Optical Experiment
		abstract(in Japanese, pdf)

	Speaker6:	Peter van Loock (National Institute of Informatics)
	Title:	Quantum state discrimination and estimation via linear optics
		abstract(pdf)

	Speaker7:	Bill Munro (HP Lab., Bristol)
	Title:	Estimating Quantum Optical States and Processes
		abstract(pdf)