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» The Learnability of Quantum States
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CDC
2009
IEEE
133views Control Systems» more  CDC 2009»
14 years 18 days ago
Regulation and tracking of two-level quantum systems using measurement feedback
Abstract— Two-level quantum systems are important quantum models that are useful for the conceptual development and construction of quantum technologies. In this paper we provide...
Masahiro Yanagisawa, Alexander N. Korotkov, Matthe...
CORR
2010
Springer
124views Education» more  CORR 2010»
13 years 8 months ago
Quantum Three-Pass protocol: Key distribution using quantum superposition states
This letter proposes a novel key distribution protocol with no key exchange in advance, which is secure as the BB84 quantum key distribution protocol. Our protocol utilizes a phot...
Yoshito Kanamori, Seong-Moo Yoo
JACM
2006
146views more  JACM 2006»
13 years 7 months ago
Limits on the ability of quantum states to convey classical messages
We revisit the problem of conveying classical messages by transmitting quantum states, and derive new, optimal bounds on the number of quantum bits required for this task. Much of...
Ashwin Nayak, Julia Salzman
ENGL
2008
170views more  ENGL 2008»
13 years 8 months ago
Design of Reversible/Quantum Ternary Comparator Circuits
Multiple-valued quantum circuits are promising choices for future quantum computing technology, since the multiple-valued quantum system is more compact than the corresponding bina...
Mozammel H. A. Khan
FOCS
1997
IEEE
14 years 3 days ago
On the Power of Quantum Finite State Automata
In this paper, we introduce 1-way and 2-way quantum nite state automata (1qfa's and 2qfa's), which are the quantum analogues of deterministic, nondeterministic and proba...
Attila Kondacs, John Watrous