papers
Publications (11)
quant-ph2016
Separability criteria with angular and Hilbert space averages
Kazuo Fujikawa, C. H. Oh, Koichiro Umetsu +1
quant-ph2012
Aspects of universally valid Heisenberg uncertainty relation
Kazuo Fujikawa, Koichiro Umetsu
quant-ph2014
A hidden-variables version of Gisin's theorem
Kazuo Fujikawa, Koichiro Umetsu
hep-th2008
Ward Identities in the Derivation of Hawking Radiation from Anomalies
Koichiro Umetsu
quant-ph2019
A classical limit of Grover's algorithm induced by dephasing: Coherence vs entanglement
Kazuo Fujikawa, C. H. Oh, Koichiro Umetsu
hep-th2009
Hawking Radiation from Kerr-Newman Black Hole and Tunneling Mechanism
Koichiro Umetsu
quant-ph2008
Clear evasion of the uncertainty relation with very small probability
Kazuo Fujikawa, Koichiro Umetsu
hep-th2011
Hawking radiation as tunneling from squashed Kaluza-Klein black hole
Ken Matsuno, Koichiro Umetsu
hep-th2010
Recent Attempts in the Analysis of Black Hole Radiation
Koichiro Umetsu
quant-ph2010
Uncertainty relation and probability: Numerical illustration
Kazuo Fujikawa, Koichiro Umetsu
hep-th2010
Tunneling Mechanism in Kerr-Newman Black Hole and Dimensional Reduction near the Horizon
Koichiro Umetsu