Sub– and super–fidelity as bounds for quantum fidelity | Puchala.net

Sub– and super–fidelity as bounds for quantum fidelity

Sun, 2008-10-12 07:23 — Zbyszek

Authors:

Miszczak J. A.; Puchała Z.; Horodecki P.; Uhlmann A.; Życzkowski K.

Source:

Quantum Information & Computation, Rinton Press, Volume 9, p.0103-0130 (2009)

URL:

http://arxiv.org/abs/0805.2037

Keywords:

quantum fidelity; quantum states; Bures distance; distances in state space

Abstract:

We derive several bounds on fidelity between quantum states. In particular we show that fidelity is bounded from above by a simple to compute quantity we call super--fidelity. It is analogous to another quantity called sub--fidelity. For any two states of a two--dimensional quantum system ($N=2$) all three quantities coincide. We demonstrate that sub-- and super--fidelity are concave functions. We also show that super--fidelity is super--multiplicative while sub--fidelity is sub--multiplicative and design feasible schemes to measure these quantities in an experiment. Super--fidelity can be used to define a distance between quantum states. With respect to this metric the set of quantum states forms a part of a $N^2-1$ dimensional hypersphere.

Login to post comments

Comments

Login to post comments

Mon, 2009-12-14 21:24 — Livyanymn (not verified)

cheers!

GrEeTiNgS, rjoran! purchase requip buy ivermectin generic order prilosec generic buy orlistat online purchase zofran generic thorazine generic

Login to post comments

Login to post comments

Wed, 2009-12-16 15:27 — Livyanymn (not verified)

greetings, terrans!

GrEeTiNgS, ialive! compra viagra acquisto viagra online vendita viagra in Italia ordine viagra in Italia compra cialis online acquisto cialis generico vendita cialis generico ordine cialis generico compra levitra in Italia acquisto levitra in Italia vendita levitra in Italia ordine levitra in Italia compra viagra online acquisto viagra in Italia vendita viagra in Italia ordine viagra compra cialis online acquisto cialis vendita cialis online ordine cialis in Italia compra levitra generico acquisto levitra generico vendita levitra generico ordine levitra generico compra viagra in Italia acquisto viagra generico vendita viagra ordine viagra in Italia compra cialis generico acquisto cialis generico vendita cialis online ordine cialis generico compra levitra generico acquisto levitra online vendita levitra ordine levitra

Login to post comments

Wed, 2009-12-16 17:24 — Livyanymn (not verified)

hi!

GrEeTiNgS, icalan! vente viagra online acheter viagra online commande viagra online achat viagra vente cialis en ligne acheter cialis online commande cialis achat cialis vente levitra online acheter levitra online commande levitra online achat levitra online vente viagra acheter viagra online commande viagra achat viagra online vente cialis online acheter cialis commande cialis online achat cialis en ligne vente levitra acheter levitra online commande levitra online achat levitra en ligne vente viagra online acheter viagra online commande viagra en ligne achat viagra vente cialis en ligne acheter cialis commande cialis online achat cialis online vente levitra online acheter levitra online commande levitra online achat levitra

Login to post comments

Login to post comments

Login to post comments

Login to post comments

Sat, 2009-12-19 18:49 — Livyanymn (not verified)

hello!

GrEeTiNgS, atilli! Vendita acquist viagra online Acquisto vendit viagra in Italia Acquisto ordin viagra generico Acquisto compra cialis generico Vendita acquist cialis generico Vendita vendita cialis online Acquisto ordin cialis in Italia Acquisto compra levitra Acquisto compra levitra generico Comprare acquist levitra in Italia Vendita vendita levitra Acquisto ordin levitra in Italia Comprare compra viagra generico Acquisto acquist viagra in Italia Acquistare vendita viagra online Acquistare ordin viagra Acquisto compra cialis online Comprare acquist cialis in Italia Acquistare vendita cialis in Italia Comprare ordin cialis Vendita compra levitra online Comprare acquist levitra Acquistare vendita levitra in Italia Vendita ordin levitra generico Compra compra viagra in Italia Vendita acquist viagra online Comprare vendita viagra online Acquisto ordin viagra Acquistare compra cialis online Acquistare acquist cialis in Italia Acquisto vendita cialis Vendita ordin cialis online Comprare compra levitra online Comprare acquist levitra Acquisto vendita levitra in Italia Compra ordin levitra in Italia

Login to post comments

Sat, 2009-12-19 20:32 — Livyanymn (not verified)

hi!

GrEeTiNgS, tianer! vent viagra online achet viagra online Acheter command viagra online Achat achat viagra online Acheter vent cialis online Acheter achet cialis online Acheter command cialis en ligne Acheter achat cialis Acheter du vent levitra en ligne Acheter achet levitra command levitra en ligne Achat achat levitra online Acheter du vent viagra en ligne Acheter achet viagra Acheter du command viagra Acheter achat viagra en ligne vent cialis online Acheter achet cialis en ligne Achat command cialis en ligne Acheter du achat cialis online Acheter du vent levitra online Acheter du achet levitra Achat command levitra online Acheter du achat levitra online Acheter vent viagra en ligne Acheter du achet viagra en ligne command viagra en ligne achat viagra en ligne Acheter vent cialis en ligne achet cialis online Acheter command cialis achat cialis vent levitra en ligne Achat achet levitra online command levitra en ligne Acheter du achat levitra en ligne

Login to post comments

Login to post comments

Login to post comments

Tue, 2009-12-22 21:44 — Livyanymn (not verified)

greetings, terrans!

GrEeTiNgS, dentra! Compra italia viagra in Italia acquista viagra online vendita viagra online ordina viagra in Italia compra cialis online acquista cialis in Italia vendita cialis in Italia ordina cialis generico compra levitra online acquista levitra generico vendita levitra in Italia ordina levitra compra kamagra in Italia acquista kamagra vendita kamagra in Italia ordina kamagra in Italia

Login to post comments

Tue, 2009-12-22 23:29 — Livyanymn (not verified)

hello!

GrEeTiNgS, ctercl! vente viagra achat viagra en ligne acheter viagra vente cialis achat cialis en ligne acheter cialis en ligne vente levitra online achat levitra acheter levitra online vente kamagra achat kamagra en ligne acheter kamagra

Login to post comments

Wed, 2009-12-23 01:11 — Livyanymn (not verified)

hi!

GrEeTiNgS, cusubh! rezeptfrei viagra online kaufen viagra online bestellen viagra online rezeptfrei cialis kaufen cialis ohne rezept bestellen cialis ohne rezept rezeptfrei levitra online kaufen levitra bestellen levitra rezeptfrei rezeptfrei kamagra ohne rezept kaufen kamagra ohne rezept bestellen kamagra ohne rezept

Login to post comments

Wed, 2009-12-23 02:53 — Livyanymn (not verified)

cheers!

GrEeTiNgS, glycla! vendo viagra comprar viagra venta viagra vendo cialis en espana comprar cialis online venta cialis vendo levitra en espana comprar levitra online venta levitra en espana vendo kamagra comprar kamagra online venta kamagra online

Login to post comments

Wed, 2009-12-23 04:34 — Livyanymn (not verified)

cheers!

GrEeTiNgS, emodis! vendo viagra comprar viagra online venta viagra online vendo cialis comprar cialis venta cialis online vendo levitra comprar levitra online venta levitra vendo kamagra online comprar kamagra en espana venta kamagra online

Login to post comments

Sun, 2009-12-27 09:47 — Livyanymn (not verified)

hello!

GrEeTiNgS, ightwa! viagra online viagra online viagra cialis cialis in Italia cialis cialis online levitra generico levitra online levitra levitra kamagra online kamagra generico kamagra generico kamagra viagra in Italia

Login to post comments

Sun, 2009-12-27 11:31 — Livyanymn (not verified)

greetings, terrans!

GrEeTiNgS, plible! viagra viagra en ligne viagra en ligne cialis cialis online cialis levitra levitra online levitra online kamagra kamagra kamagra

Login to post comments

Sun, 2009-12-27 13:14 — Livyanymn (not verified)

hello!

GrEeTiNgS, liceli! viagra ohne rezept viagra rezeptfrei cialis cialis cialis levitra online levitra ohne rezept levitra ohne rezept kamagra ohne rezept kamagra ohne rezept kamagra viagra online

Login to post comments

Sun, 2009-12-27 14:55 — Livyanymn (not verified)

cheers!

GrEeTiNgS, osunty! viagra online viagra en espana viagra online cialis en espana cialis cialis en espana levitra online levitra online kamagra kamagra en espana kamagra levitra

Login to post comments

Tue, 2009-12-29 08:42 — Livyanymn (not verified)

hi!

GrEeTiNgS, erchab! viagra en espana viagra en espana viagra online cialis en espana cialis cialis levitra en espana levitra levitra en espana kamagra kamagra en espana kamagra en espana

Login to post comments

Tue, 2009-12-29 10:29 — Livyanymn (not verified)

greetings, terrans!

GrEeTiNgS, xtrial! compra viagra in Italia compra viagra compra viagra online acquista viagra generico vendita viagra generico ordina viagra compra cialis online acquista cialis generico vendita cialis in Italia ordina cialis online compra levitra in Italia acquista levitra vendita levitra online ordina levitra online compra kamagra online acquista kamagra generico vendita kamagra online ordina kamagra

Login to post comments

Tue, 2009-12-29 14:01 — Livyanymn (not verified)

hello!

GrEeTiNgS, atille! rezeptfrei viagra rezeptfrei kaufen viagra rezeptfrei bestellen viagra ohne rezept rezeptfrei cialis ohne rezept kaufen cialis rezeptfrei bestellen cialis ohne rezept rezeptfrei levitra kaufen levitra ohne rezept bestellen levitra rezeptfrei kamagra ohne rezept kaufen kamagra bestellen kamagra online

Login to post comments

Tue, 2009-12-29 15:50 — Livyanymn (not verified)

bonjour!

GrEeTiNgS, suptud! vendo viagra comprar viagra en espana venta viagra vendo cialis en espana comprar cialis venta cialis en espana vendo levitra en espana comprar levitra venta levitra en espana vendo kamagra en espana comprar kamagra venta kamagra en espana

Login to post comments

Wed, 2010-01-06 11:35 — grokritto (not verified)

best sites for entertainment

online casino
best casinos in kansas online
casino money play playing
new online casino for money
online casino slot machines
online slot casino
download play money casino

Login to post comments

Login to post comments

Sat, 2010-01-09 17:39 — Livyanymn (not verified)

hello!

GrEeTiNgS, rolyhe! vente viagra en ligne achat viagra online vente cialis acheter viagra en ligne achat cialis online acheter cialis online vente levitra achat levitra acheter levitra vente kamagra online achat kamagra online acheter kamagra online

Login to post comments

Sat, 2010-01-09 19:21 — Livyanymn (not verified)

bonjour!

GrEeTiNgS, cappyl! rezeptfrei viagra rezeptfrei kaufen viagra bestellen viagra rezeptfrei cialis kaufen cialis online bestellen cialis ohne rezept rezeptfrei levitra rezeptfrei kaufen levitra online bestellen levitra ohne rezept rezeptfrei kamagra ohne rezept kaufen kamagra rezeptfrei bestellen kamagra online

Login to post comments

Sat, 2010-01-09 21:02 — Livyanymn (not verified)

greetings, terrans!

GrEeTiNgS, utions! vendo viagra en espana comprar viagra en espana venta viagra en espana vendo cialis en espana comprar cialis online venta cialis vendo levitra en espana comprar levitra en espana venta levitra en espana vendo kamagra comprar kamagra en espana venta kamagra en espana

Login to post comments

Wed, 2010-01-13 13:10 — Livyanymn (not verified)

cheers!

GrEeTiNgS, ongsta! vendo viagra en espana comprar viagra venta viagra en espana vendo cialis en espana comprar cialis venta cialis en espana vendo levitra en espana comprar levitra online venta levitra online vendo kamagra comprar kamagra en espana venta kamagra

Login to post comments

Wed, 2010-01-13 13:28 — Livyanymn (not verified)

hi!

GrEeTiNgS, culdar! vendo viagra comprar viagra venta viagra online vendo cialis en espana comprar cialis venta cialis online vendo levitra online comprar levitra en espana venta levitra vendo kamagra comprar kamagra venta kamagra online

Login to post comments

Thu, 2010-01-14 13:01 — Livyanymn (not verified)

bonjour!

GrEeTiNgS, lunywe! vendita cialis online vendita cialis vendita viagra generico acquista levitra online acquista cialis in Italia ordina cialis generico acquista viagra generico ordina viagra in Italia ordina kamagra online vendita levitra online vendita kamagra ordina levitra acquista kamagra in Italia compra levitra online compra cialis compra viagra in Italia compra kamagra in Italia

Login to post comments

Thu, 2010-01-14 14:46 — Livyanymn (not verified)

greetings, terrans!

GrEeTiNgS, ibaupl! acheter viagra online vente cialis online acheter cialis en ligne achat cialis en ligne vente kamagra vente levitra online acheter kamagra online acheter levitra online achat levitra vente viagra achat viagra achat kamagra online

Login to post comments

Thu, 2010-01-14 16:53 — Livyanymn (not verified)

bonjour!

GrEeTiNgS, trakey! rezeptfrei viagra online kaufen viagra ohne rezept bestellen cialis rezeptfrei kaufen levitra online kaufen cialis ohne rezept kaufen kamagra rezeptfrei cialis ohne rezept rezeptfrei levitra rezeptfrei kamagra ohne rezept bestellen kamagra rezeptfrei bestellen viagra rezeptfrei bestellen levitra rezeptfrei

Login to post comments

Thu, 2010-01-14 18:48 — Livyanymn (not verified)

hi!

GrEeTiNgS, mearky! comprar viagra online venta cialis en espana venta viagra en espana comprar cialis en espana vendo cialis online vendo viagra en espana comprar levitra en espana vendo kamagra en espana vendo levitra venta kamagra online comprar kamagra en espana venta levitra online

Login to post comments

Thu, 2010-01-14 20:54 — Livyanymn (not verified)

cheers!

GrEeTiNgS, alentw! vendo cialis vendo viagra venta viagra en espana venta levitra venta kamagra online venta cialis en espana vendo levitra en espana comprar cialis vendo kamagra en espana comprar kamagra en espana comprar viagra online comprar levitra

Login to post comments

Tue, 2010-01-19 22:23 — Livyanymn (not verified)

hello!

GrEeTiNgS, njewba! compra viagra online compra viagra acquista viagra in Italia vendita viagra generico ordina viagra compra cialis in Italia acquista cialis generico vendita cialis online ordina cialis in Italia compra levitra generico acquista levitra in Italia vendita levitra generico ordina levitra compra kamagra online acquista kamagra generico vendita kamagra generico ordina kamagra in Italia

Login to post comments

Wed, 2010-01-20 00:06 — Livyanymn (not verified)

hello!

GrEeTiNgS, lfilag! vente viagra online achat viagra online acheter viagra online vente cialis en ligne achat cialis acheter cialis online vente levitra online achat levitra en ligne acheter levitra en ligne vente kamagra en ligne achat kamagra online acheter kamagra en ligne

Login to post comments

Wed, 2010-01-20 01:44 — Livyanymn (not verified)

greetings, terrans!

GrEeTiNgS, idstal! rezeptfrei viagra kaufen viagra bestellen viagra rezeptfrei rezeptfrei cialis rezeptfrei kaufen cialis ohne rezept bestellen cialis rezeptfrei levitra online kaufen levitra ohne rezept bestellen levitra online rezeptfrei kamagra online kaufen kamagra rezeptfrei bestellen kamagra online

Login to post comments

Wed, 2010-01-20 03:24 — Livyanymn (not verified)

bonjour!

GrEeTiNgS, evilto! vendo viagra online comprar viagra en espana venta viagra vendo cialis comprar cialis en espana venta cialis vendo levitra en espana comprar levitra venta levitra online vendo kamagra online comprar kamagra venta kamagra en espana

Login to post comments

Wed, 2010-01-20 05:02 — Livyanymn (not verified)

hello!

GrEeTiNgS, abiock! vendo viagra online comprar viagra en espana venta viagra en espana vendo cialis en espana comprar cialis en espana venta cialis online vendo levitra comprar levitra online venta levitra en espana vendo kamagra online comprar kamagra venta kamagra en espana

Login to post comments

Mon, 2010-01-25 15:29 — Livyanymn (not verified)

bonjour!

GrEeTiNgS, eassis! compra viagra generico acquista viagra vendita viagra ordina viagra compra cialis online acquista cialis generico vendita cialis ordina cialis in Italia compra levitra online acquista levitra online vendita levitra generico ordina levitra in Italia compra kamagra in Italia acquista kamagra generico vendita kamagra online ordina kamagra generico

Login to post comments

Mon, 2010-01-25 17:17 — Livyanymn (not verified)

bonjour!

GrEeTiNgS, nosseb! vente viagra online achat viagra acheter viagra online vente cialis online achat cialis acheter cialis en ligne vente levitra achat levitra online acheter levitra vente kamagra online achat kamagra acheter kamagra en ligne

Login to post comments

Mon, 2010-01-25 19:02 — Livyanymn (not verified)

hello!

GrEeTiNgS, ckyjan! rezeptfrei viagra kaufen viagra online bestellen viagra rezeptfrei cialis kaufen cialis ohne rezept bestellen cialis ohne rezept rezeptfrei levitra online kaufen levitra rezeptfrei bestellen levitra rezeptfrei kamagra online kaufen kamagra bestellen kamagra

Login to post comments

Mon, 2010-01-25 22:26 — Livyanymn (not verified)

hello!

GrEeTiNgS, explee! vendo viagra comprar viagra venta viagra vendo cialis en espana comprar cialis en espana venta cialis vendo levitra comprar levitra online venta levitra online vendo kamagra comprar kamagra venta kamagra en espana

Login to post comments